Painter whose work centre was in bed (5)
I believe the answer is:
corot
'painter' is the definition.
(I've seen this before)
'was in bed' is the wordplay.
'was' becomes 'ro' (I can't justify this - if you can you should believe this answer much more).
'in' is an insertion indicator.
'bed' becomes 'cot' (cot is a type of bed).
'ro' placed inside 'cot' is 'COROT'.
'whose work centre' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for corot that I've seen before include "French landscape painter, d. 1875" , "French artist" , "French landscape painter, 1796-1875" , "19th century French painter" , "Barbizon School artist" .)