Top Town Centre award (6)
I believe the answer is:
bestow
'award' is the definition.
(bestowing is a kind of awarding)
'top town centre' is the wordplay.
'top' becomes 'best' ('best' can be similar in meaning to 'top').
'town centre' becomes 'ow' (central letters of the word 'town').
'best'+'ow'='BESTOW'
(Other definitions for bestow that I've seen before include "Confer or award" , "Set bow to give" , "Confer (an honour)" , "Award, present as a gift" , "Give as a gift" .)