Boost as local accepts charge being raised (4,2)
I believe the answer is:
beef up
'boost' is the definition.
(beef up can mean to boost or make stronger)
'local accepts charge being raised' is the wordplay.
'local' becomes 'pub' (one's local pub).
'accepts' is an insertion indicator.
'charge' becomes 'fee' (fee is a kind of charge).
'being raised' says the letters should be written backwards (going up in a down clue).
'pub' going around 'fee' is 'pufeeb'.
'pufeeb' written backwards gives 'BEEF UP'.
'as' is the link.
(Other definitions for beef up that I've seen before include "message poor meat-eaters won't want to hear?" , "buttress" , "Add strength to" , "Give added strength" , "Strengthen with cow meat?" .)