A clever little insect (3)

I believe the answer is:

fly

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This could be a double definition.

'a clever' is the first definition.

'little insect' is the second definition.
'fly' can be an answer for 'insect' (fly is a kind of insect). I am not certain of the 'little' bit.

Can you help me to learn more?

(Other definitions for fly that I've seen before include "House insect" , "Soar; hurry" , "Dipterous insect" , "One invited into parlour" , "Knowing, insect" .)

I've seen this clue in the Evening Standard.

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