Leaves untouched (4)
I believe the answer is:
mint
'untouched' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for mint that I've seen before include "There's a lot of money" , "and 18 Down: Southern US cocktail" , "strongroom in treasury" , "Sweet - in perfect condition" , "Coin-making place or nice lamb sauce" .)