Rent flat with floors at different heights (5-5)

I believe the answer is:

split-level

'with floors at different heights' is the definition.

'rent flat' is the wordplay.
'rent' becomes 'split' ('split' can be a synonym of 'rent').
'flat' becomes 'level' ('level' can be a synonym of 'flat'**).
'split'+'level'='SPLIT-LEVEL'

I've seen this clue in The Guardian.

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