What's left of lease has man confused (7)

I believe the answer is:

remnant

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'what's left' is the definition.
I can't judge whether this defines the answer.

'lease has man confused' is the wordplay.
'lease' becomes 'rent' (synonyms).
'has' is an insertion indicator.
'confused' indicates an anagram.
'man' with letters rearranged gives 'mna'.
'rent' enclosing 'mna' is 'REMNANT'.

'of' acts as a link.

Can you help me to learn more?

(Other definitions for remnant that I've seen before include "Small amount (esp. cloth) left" , "offcut" , "Men rant poorly when it's left over" , "Scrap" , "Piece of leftover fabric" .)

I've seen this clue in The Daily Express.

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