Therapist exercised toes turning hot tap round (9)
I believe the answer is:
osteopath
'therapist' is the definition.
(I know that osteopath is a type of therapist)
'exercised toes turning hot tap round' is the wordplay.
'exercised' indicates anagramming the letters.
'turning' shows that the letters should be reversed in order.
'hot' becomes 'h' (common abbreviation eg on taps).
'round' becomes 'o' (o is a circular letter).
'h'+'tap'+'o'='htapo'
'htapo' back-to-front is 'opath'.
'toes' is an anagram of 'oste'.
'oste'+'opath'='OSTEOPATH'
(Other definitions for osteopath that I've seen before include "Shot a poet (anag.)" , "Practitioner in the treatment of bones and muscle" , "Specialist in manipulation of bones and muscles" , "One who treats illness by manipulating bones and muscles" , "Bonesetter" .)