Crossword Genius

Observe work in nursery is so unpleasant (3-8)

Ross

I believe the answer is:

eye-watering

I'm a little stuck... Click here to teach me more about this clue!

'nursery is so unpleasant' is the definition.
I can't tell whether this definition defines the answer.

'observe work' is the wordplay.
'observe' becomes 'eye' (eye can mean to observe or see).
'work' becomes 'watering' (I can't justify this - if you can you should believe this answer much more).
'eye'+'watering'='EYE-WATERING'

'in' is the link.

Can you help me to learn more?

(Another definition for eye-watering that I've seen is " Uncomfortably high (like tear gas?)".)

I've seen this clue in The Times.
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