Abrasive old comedian Dick on the Times? (5,5)
I believe the answer is:
emery paper
'abrasive' is the definition.
(I know that emery paper is a type of abrasive)
'old comedian dick on the times?' is the wordplay.
'old comedian dick' becomes 'Emery' (Dick Emery, 1915-1983).
'on' says to put letters next to each other.
'the times?' becomes 'paper' (the Times is a newspaper).
'emery'+'paper'='EMERY-PAPER'
(Other definitions for emery paper that I've seen before include "I polish" , "Abrasive material" , "could be smoother" , "Sheet covered with mineral powder, used for polishing" , "Piece of rough material" .)