React badly receiving bill for engineer (9)
I believe the answer is:
architect
'for engineer' is the definition.
(thesaurus)
'react badly receiving bill' is the wordplay.
'badly' indicates anagramming the letters.
'receiving' indicates putting letters inside.
'bill' becomes 'chit' (chit is a kind of bill).
'react' anagrammed gives 'arect'.
'arect' placed around 'chit' is 'ARCHITECT'.
(Other definitions for architect that I've seen before include "Perhaps Scott" , "Wren perhaps" , "professional" , "Building designer" , "Author" .)