Enter Matt, comically giving us therapy (9)
I believe the answer is:
treatment
'therapy' is the definition.
(I know that therapy can be written as treatment)
'enter matt comically' is the wordplay.
'comically' indicates an anagram (I've seen this in other clues).
'enter'+'matt'='entermatt'
'entermatt' anagrammed gives 'TREATMENT'.
'giving us' is the link.
(Other definitions for treatment that I've seen before include "Method of handling or healing" , "Management of something, illness say" , "prescribed drugs possibly" , "Hospital care" , "NHS care?" .)