Actors leaving abandoned article (4,3)
I believe the answer is:
cast off
'abandoned article' is the definition.
'cast off' can be an answer for 'abandoned' (I've seen this before). I am unsure of the 'article' bit.
'actors leaving' is the wordplay.
'actors' becomes 'cast' (group of actors).
'leaving' becomes 'off' ('I'm off' means 'I'm leaving').
'cast'+'off'='CAST-OFF'
Can you help me to learn more?
(Other definitions for cast off that I've seen before include "Stop knitting - discarded - prepare to sail away" , "Rejected" , "When the stage has emptied" , "old garment" , "Eliminate stitches - prepare for sea" .)