Bear played role in gallery (8)
I believe the answer is:
tolerate
'bear' is the definition.
(I know that bear can be written as tolerate)
'played role in gallery' is the wordplay.
'played' is an anagram indicator (letters playing around).
'in' indicates putting letters inside.
'gallery' becomes 'tate' (Tate Modern, Tate Britain etc).
'role' is an anagram of 'oler'.
'oler' going inside 'tate' is 'TOLERATE'.
(Other definitions for tolerate that I've seen before include "Treat fairly" , "Withstand" , "Abide" , "Put up with something or somebody" , "Endure with forbearance" .)