Much-hyped raid's gone wrong (9)

I believe the answer is:

grandiose

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'much-hyped' is the definition.
I can't tell whether this definition defines the answer.

'raid's gone wrong' is the wordplay.
'wrong' is an anagram indicator.
'raids'+'gone'='raidsgone'
'raidsgone' is an anagram of 'GRANDIOSE'.

Can you help me to learn more?

(Other definitions for grandiose that I've seen before include "Ridiculously impressive or imposing" , "Impressive, magnificent" , "Pretentiously magnificent" , "Planned on a magnificent scale" , "Pretentiously impressive" .)

I've seen this clue in The Globe and Mail.

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