A little fly (4)

I believe the answer is:

dash

This clue is a double definition.

'a little' is the first definition.
(a dash is a small amount)

'fly' is the second definition.
(I've seen this before)

(Other definitions for dash that I've seen before include "Run fast with flair" , "Splash of colour" , "Destroy (hopes); run" , "DOG" , "display of instruments" .)

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

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