Let’s look at important things here –
Mercury - Mercury represents communication skills, marketing, calculative ability, younger siblings, hobbies, skills with hands, intelligence, quick decision making, logical thinking, youthfulness etc.
Shravana Nakshatra - It is a nakshatra related with teaching, counselling and communications mainly but it is also the nakshatra of real estate and people who can disguise themselves really well. Please check this link for more info o Shravana Nakshatra - https://www.astrosaxena.com/shravnaksh.
Capricorn - As Shravana is part of Capricorn sign, Capricorn and things represented by Capricorn are also important here. Capricorn is the 10th sign of zodiac belt, hence it represents many things related with 10th house of horoscope like Law and Order, Government, Authority, Organisation, Discipline etc. Besides it also represents World outside your home and people, Fear and Anxiety etc. Capricorn is consisted of next 2 and half Nakshatra, i.e. Uttar-Ashadha, Shravana and Dhanishtha. Capricorn is ruled by Saturn and that's why it represents Fear and Anxiety.
Moon - As Moon rules Shravana, Moon's position and dignity is important to know about the overall functioning of any planet in Shravana.
Saturn - As Saturn rules Capricorn, their position and dignity is important to know about the overall functioning of any planet in Shravana/Capricorn
Houses Involved – Also, we can’t afford to forget the houses involved as a planet can be ruling different houses and sitting in different house for every person as per ascendant and planet’s position. To know overall affect, we have to consider the houses involved as those areas of life are being impacted.
Interpretation of Mercury in Shravana Nakshatra – Now, Mercury is in a friendly sign ruled by Saturn but in a enemy nakshatra ruled by Moon. So again, the end result is kind of neutral or average. As Shravana is all about Communication and Mercury is also about Communication, the most apparent result this nakshatra can bring is someone who is good with his communication skills. It can be someone working as teacher, counselor, in media or telecom industry etc. Counselling is the most common activity they can be involved in. At the same time, as Shravana is nakshatra of disguise, these people can be very good at mimicry and imitating others. Another feature of Shravana is real estate and as Mercury is businessman, they can be good at dealing in matters of real estate.
But then if Mercury is relationship oriented planet in chart then person will feel usual stress or frustration due to Saturn's lordship in Capricorn and enemy Moon ruling over Shravana. So, in relationship matters, usual frustration can be there.
Role of Moon – Moon placement is important to guide Mercury in right direction, being Shravana lord.
Role of Saturn - Also, Saturn placement is important to guide Mercury in right direction, being Capricorn lord.
Other Factors – And of course, we need to consider conjunction, aspects, house lordship, house position and dashas etc to know the exact results of Mercury in Shravana. So, we always need to take a holistic view of chart rather than just 1 planetary position.
Conclusion – So, this is how I see Mercury in Shravana can work in a chart.