Arts supporter in facility left (5)
I believe the answer is:
easel
'arts supporter' is the definition.
'easel' can be an answer for 'supporter'. I'm not certain of the 'arts' bit.
'facility left' is the wordplay.
'facility' becomes 'ease' (I've seen this before).
'left' becomes 'l' (common abbreviation).
'ease'+'l'='EASEL'
'in' is the link.
Can you help me to learn more?
(Other definitions for easel that I've seen before include "Painter's tripod" , "board support" , "Framework to hold a canvas" , "Frame for a canvas" , "stand supporting artistic effort" .)