After unpleasant brouhaha, fails to find causes of stench (5,5)

I believe the answer is:

stink bombs

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'causes of stench' is the definition.
Although both the answer and definition are plural nouns, I cannot see how one could define the other.

'after unpleasant brouhaha fails' is the wordplay.
'after' means one lot of letters go next to another.
'unpleasant brouhaha' becomes 'stink' (I've seen this in another clue. I am not sure about the 'unpleasant' bit.).
'fails' becomes 'bombs' ('bomb' can be a synonym of 'fail').
'stink' next to 'bombs' is 'STINK BOMBS'.

'to find' is the link.

Can you help me to learn more?

I've seen this clue in The Independent.

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