Toothpaste form (3)
I believe the answer is:
gel
'toothpaste form' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for gel that I've seen before include "well-spoken deb?" , "Set, become firmer" , "Come together, take shape (colloq.)" , "Posh female" , "Jelly-like substance for leg" .)