Toothpaste brand
I believe the answer is:
crest
'toothpaste brand' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for crest that I've seen before include "Top point of hill or wave" , "Top of a ridge/wave" , "Tuft" , "Top line of a hill, mountain, or wave" , "Top of a ridge or wave" .)