Art gallery frames son bent (5)
I believe the answer is:
taste
'bent' is the definition.
(thesaurus)
'art gallery frames son' is the wordplay.
'art gallery' becomes 'tate' (Tate Modern, Tate Britain etc).
'frames' indicates putting letters inside (outside letters frame the inside letters).
'son' becomes 's' (genealogical abbreviation for son).
'tate' placed around 's' is 'TASTE'.
(Other definitions for taste that I've seen before include "Sensation in the mouth caused by food" , "One of the senses" , "style" , "Sample orally" , "gains experience" .)