Pound cake mixture? (6)
I believe the answer is:
batter
This clue might be a double definition.
'pound' is the first definition.
(thesaurus)
'cake mixture?' is the second definition.
'batter' can be an answer for 'mixture?' (batter is a kind of mixture). I am unsure of the 'cake' bit.
Can you help me to learn more?
(Other definitions for batter that I've seen before include "Thin mixture of flour and liquid" , "Fish may be fried in this coating" , "Hit repeatedly" , "Hit hard and often, like cooking mixture" , "Beat the cooking mixture" .)