Being smarter than officer, initially labouring to fix gun (9)

I believe the answer is:

outfoxing

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'being smarter than' is the definition.
I can't judge whether this defines the answer.

'officer initially labouring to fix gun' is the wordplay.
'initially' indicates taking the first letters.
'labouring' indicates an anagram (letters worked or laboured into a new form).
The first letter of 'officer' is 'o'.
'to'+'fix'+'gun'='tofixgun'
'tofixgun' anagrammed gives 'utfoxing'.
'o'+'utfoxing'='OUTFOXING'

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(Another definition for outfoxing that I've seen is " Outdoing in trickery".)

I've seen this clue in The Times.

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