Cinnamon or cardamom (5)
I believe the answer is:
spice
I believe this clue is a double definition.
'cinnamon' is the first definition.
(thesaurus)
'cardamom' is the second definition.
(thesaurus)
(Other definitions for spice that I've seen before include "Aromatic flavouring" , "It creates added interest" , "Pungent flavouring" , "Pungent substance to flavour food" , "Something providing excitement" .)