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