Makes offensive remarks about sliders (7)
I believe the answer is:
sledges
I believe this is a double definition.
'makes offensive remarks about' is the first definition.
(sledging is taunting the opponents in cricket)
'sliders' is the second definition.
(vehicles which slide over snow)
(Other definitions for sledges that I've seen before include "More than one big hitter" , "Sleighs; hammers" , "Snow carts" , "insults" .)