Can such larceny befit an officer? (5)

I believe the answer is:

petty

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'officer?' is the definition.
(petty officer is a kind of officer)

I don't understand the rest of the clue.

(Other definitions for petty that I've seen before include "Unimportant" , "Trivial, piffling" , "Small-time" , "Marked by narrowness of mind" , "Trifling" .)

I've seen this clue in the Evening Standard.

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