Crossword Genius

Most free facilities bedsit’s occasionally lacking (7)

Ross

I believe the answer is:

loosest

'most free' is the definition.
(loose can mean free or relaxed)

'facilities bedsit's occasionally lacking' is the wordplay.
'facilities' becomes 'loos' (loo is a kind of facility).
'occasionally lacking' means one should take alternating letters (letters removed at regular intervals or occasions).
The alternate letters of 'bedsit' are 'est'.
'loos'+'est'='LOOSEST'

(Other definitions for loosest that I've seen before include "most unstable" , "most relaxed" .)

I've seen this clue in The Independent.
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