Sword turned up in pedal bin (5)
I believe the answer is:
blade
'sword' is the definition.
(I know that sword can be written as blade)
'turned up in pedal bin' is the wordplay.
'turned up' shows that the letters should be reversed in order.
'in' indicates a hidden word.
'edalb' can be found hidden inside 'pedal bin'.
'edalb' back-to-front is 'BLADE'.
(Other definitions for blade that I've seen before include "Runner on an ice-skate" , "See 24 Across" , "Leaf, of grass, say" , "London rail terminus" , "Sword" .)