___ cream sandwich (3)

I believe the answer is:
ice
(Other definitions for ice that I've seen before include "Solid H2O" , "Rocks on which drink is served?" , "engine" , "Girl's best friends" , "Diamonds, colloquially" .)
I believe the answer is:
ice
(Other definitions for ice that I've seen before include "Solid H2O" , "Rocks on which drink is served?" , "engine" , "Girl's best friends" , "Diamonds, colloquially" .)