Crossword Genius

Ill-tempered, nagging and mousy? (8)

Ross

I believe the answer is:

shrewish

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'ill-tempered' is the definition.
(I've seen this in another clue)

I cannot understand how the remainder of the clue works.

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(Other definitions for shrewish that I've seen before include "Like Kate" , "Sharp-tongued" , "inclined to nag?" , "(Of a woman) nagging" .)

I've seen this clue in the Evening Standard.
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