Remove oxygen, say, from artist (5)
I believe the answer is:
degas
'artist' is the definition.
(I've seen this before)
'remove oxygen say' is the wordplay.
'remove' becomes 'de' (I've seen this in other clues).
'oxygen say' becomes 'gas' (oxygen is a kind of gas).
'de'+'gas'='DEGAS'
'from' is the link.
(Other definitions for degas that I've seen before include "Edgar -, Fr. artist" , "Edgar -, Fr. sculptor/ painter" , "French artist known for his ballet scenes, d. 1917" , "He painted dancers" , "French impressionist painter, d. 1917" .)