Allowance from crown included in remit (7)
I believe the answer is:
stipend
'allowance' is the definition.
(thesaurus)
'crown included in remit' is the wordplay.
'crown' becomes 'tip' ('tip' can be a synonym of 'crown').
'included in' means one lot of letters goes inside another.
'remit' becomes 'send' (I've seen this before).
'tip' going into 'send' is 'STIPEND'.
'from' acts as a link.
(Other definitions for stipend that I've seen before include "Wage" , "Fixed salary" , "Church pay" , "Regular salary" , "Official income of Protestant clergyman" .)