Went round art gallery interrupting staff (7)
I believe the answer is:
rotated
'went round' is the definition.
(to rotate is to go round and round)
'art gallery interrupting staff' is the wordplay.
'art gallery' becomes 'tate' (Tate Modern, Tate Britain etc).
'interrupting' means one lot of letters goes inside another.
'staff' becomes 'rod' (both can mean a pole or stick).
'tate' going into 'rod' is 'ROTATED'.
(Other definitions for rotated that I've seen before include "Turned around axis or central point" , "Turner did?" , "Spun" , "Had spin" , "Turned round" .)