A short report on ground is refreshing stuff (4,3)
I believe the answer is:
soda pop
'refreshing stuff' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'a short report on ground' is the wordplay.
'short report' becomes 'pop' (I've seen this in another clue).
'on' says to put letters next to each other.
'ground' becomes 'sod' (both can mean a piece of earth).
'a'+'pop'='apop'
'apop' after 'sod' is 'SODA POP'.
'is' acts as a link.
Can you help me to learn more?
(Another definition for soda pop that I've seen is " Fizzy drink".)