Shocking surprise (9)

I believe the answer is:

bombshell

'shocking surprise' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for bombshell that I've seen before include "attractive blonde" , "Overwhelming surprise" , "Big surprise" , "A great surprise" , "big disappointment" .)

I've seen this clue in The Mirror and the Evening Standard.

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