Crossword Genius

Not to mention being undisturbed (3,5)


I believe the answer is:

let alone

I believe this is a double definition.

'not to mention' is the first definition.
(both can be used to refer to another point)

'undisturbed' is the second definition.
(left alone)

'being' is the link.

(Other definitions for let alone that I've seen before include "Not to mention - much less - avoid" , "Not to mention (thing)" , "Not to mention, never mind" , "Don't bother someone - allow to be solitary" , "Don't touch" .)

I've seen this clue in The Guardian.
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