Rubber ages Queen (6)
I believe the answer is:
eraser
'rubber' is the definition.
(rubber can mean an eraser)
'ages queen' is the wordplay.
'ages' becomes 'eras' (I've seen this before).
'queen' becomes 'ER' (abbreviation for Elizabeth Regina).
'eras'+'er'='ERASER'
(Other definitions for eraser that I've seen before include "correction device" , "device for deleting things" , "destroyer" , "One removes writing" , "It could remove" .)