Certainly not enjoying a night out (6)

I believe the answer is:

hating

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'certainly not' is the definition.
I can't tell whether this definition defines the answer.

'enjoying a night out' is the wordplay.
'enjoying' is an insertion indicator.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'night' anagrammed gives 'hting'.
'a' inserted within 'hting' is 'HATING'.

Can you help me to learn more?

(Other definitions for hating that I've seen before include "Loathing" , "Abhorring" , "Detesting" , "Having an aversion to" , "Disliking intensely" .)

I've seen this clue in the Evening Standard.

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