A second artist brought over bouquet (5)
I believe the answer is:
aroma
'bouquet' is the definition.
(thesaurus)
'a second artist brought over' is the wordplay.
'second' becomes 'mo' (both are short periods of time).
'artist' becomes 'ra' (Royal Academician, member of Royal Academy of Arts).
'brought over' says the letters should be written in reverse.
'a'+'mo'+'ra'='amora'
'amora' backwards is 'AROMA'.
(Other definitions for aroma that I've seen before include "Food fragrance" , "Strong smell" , "Test of knowledge" , "Agreeable odour" , "Pleasant odour" .)