Crossword Genius

Fool that may get in your hair (3)

Ross

I believe the answer is:

nit

I believe this clue is a double definition.

'fool' is the first definition.
(both can mean a stupid person)

'that may get in your hair' is the second definition.
(insect egg in one's hair)

(Other definitions for nit that I've seen before include "Eg of louse" , "Stupid person; egg" , "Parasite's egg made of tin" , "Louse's egg; idiot" , "Egg of parasitic insect" .)

I've seen this clue in The Times.
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