Crossword Genius

Little-used ruling leading to beneficial qualification (2,4,9)

Ross

I believe the answer is:

in good condition

'little-used' is the definition.
(something hardly used would be in good condition)

'ruling leading to beneficial qualification' is the wordplay.
'ruling' becomes 'in' (the ruling party is voted 'in').
'leading to' means one lot of letters go next to another (some letters go before or lead others).
'beneficial' becomes 'good' (synonyms).
'qualification' becomes 'condition' (both can mean a stipulation or requirement).
'in'+'good'+'condition'='IN GOOD CONDITION'

I've seen this clue in The Guardian.
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