Parking under high cliff and steep bank (5)
I believe the answer is:
scarp
'steep bank' is the definition.
(I've seen this before)
'parking under high cliff' is the wordplay.
'parking' becomes 'p'.
'under' says to put letters next to each other.
'high cliff' becomes 'scar' (scar can mean a rocky cliff).
'p' put after 'scar' is 'SCARP'.
'and' is the link.
(Other definitions for scarp that I've seen before include "slippery slope" , "Steep bank" .)