Move equipment — upset artist's pet perhaps (10)
I believe the answer is:
budgerigar
'pet perhaps' is the definition.
(budgerigars are often kept as pets)
'move equipment upset artist's' is the wordplay.
'move' becomes 'budge' (to budge is to move slightly).
'equipment' becomes 'rig' (rig is a kind of equipment).
'upset' says the letters should be written in reverse.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'ra' written backwards gives 'ar'.
'budge'+'rig'+'ar'='BUDGERIGAR'
(Other definitions for budgerigar that I've seen before include "something in cage?" , "one on the wing" , "Flier" , "Popular cage-bird" , "Australian parakeet" .)