Shot a pest in the garden (4)
I believe the answer is:
slug
'shot' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for slug that I've seen before include "draught" , "Garden pest - pellet" , "Live" , "Some whisky perhaps" , "Garden mollusc" .)