Unorthodox healer, very involved in Channel port (2,5)
I believe the answer is:
le havre
'channel port' is the definition.
(English Channel port)
'unorthodox healer very involved' is the wordplay.
'unorthodox' indicates anagramming the letters.
'very' becomes 'v' (abbreviation).
'involved' is an insertion indicator.
'healer' anagrammed gives 'lehare'.
'lehare' enclosing 'v' is 'LE HAVRE'.
'in' acts as a link.
(Other definitions for le havre that I've seen before include "Northern French port" , "French Channel port" , "Port in Normandy" , "Port city of northern France" .)