A quiet crossing place in market town (7)
I believe the answer is:
ashford
'market town' is the definition.
(I know that Ashford is a market town)
'a quiet crossing place' is the wordplay.
'quiet' becomes 'sh' (both can be said to tell someone to be quiet).
'crossing place' becomes 'ford' (I've seen this in another clue).
'a'+'sh'+'ford'='ASHFORD'
'in' is the link.
(Other definitions for ashford that I've seen before include "Kent town with rail link to Paris" , "Town in Kent with international rail station" , "Daisy" , "seen en route to the Channel Tunnel" .)