Texas tea (3)
I believe the answer is:
oil
'texas tea' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for oil that I've seen before include "Slippery liquid" , "Valuable viscous liquid" , "Viscous substance as lubricant" , "Liquid gold" , "Thick liquid that doesn't dissolve in water" .)