Leaves with no parking skills (4)
I believe the answer is:
arts
'skills' is the definition.
(I've seen this before)
'leaves with no parking' is the wordplay.
'leaves' becomes 'parts' (parting is a kind of leaving).
'with no' suggests deleting specific letters.
'parking' becomes 'p'.
'parts' with 'p' removed is 'ARTS'.
(Other definitions for arts that I've seen before include "they may be performing" , "Humanities" , "Products of human creativity" , "Aesthetic pursuits for rats" , "Aesthetic products for star" .)