Everyone scoffing salmon I caught — it's lush (9)
I believe the answer is:
alcoholic
'it's lush' is the definition.
(synonyms)
'everyone scoffing salmon i caught' is the wordplay.
'everyone' becomes 'all' (all people).
'scoffing' indicates putting letters inside.
'salmon' becomes 'coho' (type of salmon).
'caught' becomes 'c' (cricket abbreviation).
'all' placed around 'coho' is 'alcohol'.
'alcohol'+'i'+'c'='ALCOHOLIC'
(Other definitions for alcoholic that I've seen before include "Person addicted to liquor" , "Drunk" , "Over-tippling" , "Spirituous" , "One addicted to drink" .)