Large quiet pile with desirable parking (5)
I believe the answer is:
plump
'large quiet pile' is the definition.
The definition and answer can be both to do with contact as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?
'with desirable parking' is the wordplay.
'with' says to put letters next to each other.
'desirable' becomes 'plum' (I've seen this before).
'parking' becomes 'p' (abbreviation on road signs).
'plum' put next to 'p' is 'PLUMP'.
(Other definitions for plump that I've seen before include "Having a full rounded shape" , "Chubby, rounded" , "Chubby, fat" , "Portly" , "Well-rounded" .)