Obtain professional medical treatment (7)
I believe the answer is:
procure
'obtain' is the definition.
(I know that obtain is a is a kind of of procure)
'professional medical treatment' is the wordplay.
'professional' becomes 'pro' (abbreviation).
'medical treatment' becomes 'cure'.
'pro'+'cure'='PROCURE'
(Other definitions for procure that I've seen before include "Acquire" , "Obtain; solicit" , "Get by special effort" .)