Gives a man a different seat (7)
I believe the answer is:
donates
'gives' is the definition.
(donating is a kind of giving)
'a man a different seat' is the wordplay.
'a man' becomes 'don' (Don is an example).
'a different' is an anagram indicator.
'seat' is an anagram of 'ates'.
'don'+'ates'='DONATES'
(Other definitions for donates that I've seen before include "gifts" , "Gives to good cause" , "Offers free" .)