Out of practice (5)
'out of practice' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for rusty that I've seen before include "Oxidised, corroded" , "Reddish," , "(Of iron) corroded" , "affected by inactivity" , "Having a reddish-orange oxide coating" .)
'out of practice' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stale that I've seen before include "No longer take" , "Not fresh, being least" , "no longer bearing interest?" , "No longer fresh" , "piss" .)