Opening given to hobbyist — a money-gathering job (4-9)

I believe the answer is:

rent-collector

'a money-gathering job' is the definition.
(a rent-collector collects rent money)

'opening given to hobbyist' is the wordplay.
'opening' becomes 'rent' (rent is a kind of opening).
'given to' says to put letters next to each other.
'hobbyist' becomes 'collector'.
'rent'+'collector'='RENT-COLLECTOR'

I've seen this clue in The Times.

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