Addict across street, right? It's less clear (9)

I believe the answer is:

abstruser

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'it's less clear' is the definition.
I can't judge whether this definition defines the answer.

'addict across street right?' is the wordplay.
'addict' becomes 'abuser' (I've seen this in another clue).
'across' means one lot of letters goes inside another.
'street' becomes 'st' (abbreviation).
'right?' becomes 'r' (common abbreviation).
'st'+'r'='str'
'abuser' placed around 'str' is 'ABSTRUSER'.

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(Another definition for abstruser that I've seen is " More obscure".)

I've seen this clue in The Guardian.

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