See fit to accept top flight (6)
I believe the answer is:
escape
'flight' is the definition.
(flight can mean an escape)
'see fit to accept top' is the wordplay.
'fit' indicates anagramming the letters (letters fitted or arranged in a different way).
'to accept' means one lot of letters goes inside another.
'top' becomes 'cap' (both can mean to beat or outdo).
'see' anagrammed gives 'ese'.
'ese' placed around 'cap' is 'ESCAPE'.
(Other definitions for escape that I've seen before include "Break loose, get away" , "Avoid - flight" , "See cap (anag.)" , "Get away from depravity" , "Get free from captivity" .)