Say love is nursing street people with swollen heads (7)

I believe the answer is:

egoists

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'say love is nursing street people with swollen heads' is the definition.
I can't judge whether this defines the answer.

'say love is nursing street' is the wordplay.
'say' becomes 'eg' (both can mean for example).
'love' becomes 'o' (love means zero in tennis).
'nursing' means one lot of letters goes inside another.
'street' becomes 'st' (abbreviation).
'is' going around 'st' is 'ists'.
'eg'+'o'+'ists'='EGOISTS'

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(Another definition for egoists that I've seen is " Selfish, vain types".)

I've seen this clue in The Independent.

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