Exercise to some degree contraindicated (5)
I believe the answer is:
train
'exercise' is the definition.
(I know that train is a more specific form of exercise)
'some degree contraindicated' is the wordplay.
'some' says the answer is hidden in the clue (some parts of the word are used).
'TRAIN' is hidden within 'degree contraindicated'.
'to' acts as a link.
(Other definitions for train that I've seen before include "Teach; series of gears" , "Long back section of a gown that's drawn along the floor" , "Groom" , "tutor" , "guide" .)