Crossword Genius

Brood in hospital with one of those spreading rubbish (8)

Ross

I believe the answer is:

litterer

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

'spreading rubbish' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.

'brood in hospital with one of those' is the wordplay.
I cannot really understand how this works, but
'brood' could be 'litter' (I've seen this before) and 'litter' is located in the answer.
'in hospital' could be 'er' (I've seen this in other clues) and 'er' is found within the answer.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in the Irish Times.
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