The most common and most likely answer to this crossword clue is the 7 letter word STAINES
S
T
A
I
N
E
S
More clues leading to the result STAINES
- Play set in a Southern English town
- Surrey town functions receiving cheers
- Functions involving army once in Surrey town
- Mars visited by leader from Epsom, a town in Surrey
- Spots, while talking, a town on the Thames
- Town on Thames newly laid out in east? South!
- Gratitude expressed during functions in Surrey town
Buddy explains!

The straight part
We know that "Surrey town" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case surrey town = staines.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.