Ran out (6)
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I believe the answer is:
lapsed
'ran out' is the definition.
(lapsing is a kind of running out)
This is the entire clue.
(Other definitions for lapsed that I've seen before include "declined" , "Expired over pedals" , "No longer active or practising" , "Became invalid through disuse" , "Pleads (anag)" .)