Let's rob abandoned pad (7)
I believe the answer is:
bolster
'pad' is the definition.
(I know that pad can be written as bolster)
'let's rob abandoned' is the wordplay.
'abandoned' is an anagram indicator (the original order is abandoned).
'lets'+'rob'='letsrob'
'letsrob' with letters rearranged gives 'BOLSTER'.
(Other definitions for bolster that I've seen before include "Strengthen - long pillow" , "support for head after retiring" , "Support; long pillow" , "Chisel - long cushion" , "Provide reinforcement" .)