Some nasty eye infection (4)

I believe the answer is:

stye

'infection' is the definition.
(I know that stye is a type of infection)

'some nasty eye' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'STYE' is hidden within 'nasty eye'.

(Other definitions for stye that I've seen before include "Infection on the edge of the eye" , "Eye problem" , "Inflamed swelling on the edge of an eyelid" , "Eye blemish" , "Climb" .)

I've seen this clue in The Irish Independent.

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