Urchin’s bungled action limited by resistance once more (10)
I believe the answer is:
ragamuffin
'urchin's' is the definition.
(ragamuffin is a kind of urchin)
'bungled action limited by resistance once more' is the wordplay.
'bungled action' becomes 'muff' (term for a blunder or poorly executed action).
'limited by' indicates putting letters inside (limit can mean to contain or border off).
'resistance' becomes 'r' (electronics abbreviation).
'once more' becomes 'again' (synonyms).
'r'+'again'='ragain'
'muff' inserted within 'ragain' is 'RAGAMUFFIN'.
(Other definitions for ragamuffin that I've seen before include "Unkempt, disreputable child" , "Disreputable type" , "Fuming afar (anag)" , "Scruffy urchin" , "little scruff" .)