Share flat having staggered rooms (5,5)
I believe the answer is:
'staggered rooms' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'share flat' is the wordplay.
'share' becomes 'split' (I've seen this in another clue).
'flat' becomes 'level' (synonyms).
'having' is the link.
Can you help me to learn more?