Leave the car in a public garden (4)
I believe the answer is:
park
This clue might be a double definition.
'leave the car' is the first definition.
'park' can be an answer for 'leave' (parking a car is leaving it somewhere). I am not sure about the 'the car' bit.
'public garden' is the second definition.
(I've seen this before)
'in a' acts as a link.
Can you help me to learn more?
(Other definitions for park that I've seen before include "See 8" , "Large area of land for public recreation" , "gear" , "South ---; TV cartoon" , "See 11 Across" .)