With rest and exercise, back in the pink (6)
I believe the answer is:
repose
'with rest' is the definition.
'repose' can be an answer for 'rest' (synonyms). I am unsure of the 'with' bit.
'exercise back in the pink' is the wordplay.
'exercise' becomes 'pe' (Physical Education).
'back' says the letters should be written in reverse.
'in the' indicates putting letters inside.
'pink' becomes 'rose' (colour).
'pe' reversed gives 'ep'.
'ep' put within 'rose' is 'REPOSE'.
'and' is the link.
Can you help me to learn more?
(Other definitions for repose that I've seen before include "Rest - tranquillity" , "Lie at rest" , "place" , "Quiet restfulness" , "Relaxation" .)