A mixture of leaves and rocks? (4,3)
I believe the answer is:
iced tea
'a mixture' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'leaves and rocks?' is the wordplay.
'leaves' becomes 'tea' (as in tea leaves).
'and' says to put letters next to each other.
'rocks?' becomes 'iced' (I am not sure about this - if you are sure you should believe this answer much more).
'tea' put after 'iced' is 'ICED TEA'.
'of' is the link.
Can you help me to learn more?
(Other definitions for iced tea that I've seen before include "Cold summer drink" , "Cool drink" , "Chilled drink" .)