Aromatic ingredient providing decoration (5)

I believe the answer is:

icing

'decoration' is the definition.
(icing is a kind of decoration)

'aromatic ingredient providing' is the wordplay.
'providing' indicates the answer is hidden within the clue.
'ICING' is hidden within 'aromatic ingredient'.

(Other definitions for icing that I've seen before include "The sweetest part of the cake" , "Food coating" , "Top cake layer" , "unwelcome on aircraft" , "Maybe Madeira's topping" .)

I've seen this clue in The Telegraph.

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