Parking in a bad way - if it makes one feel better, I wouldn't say no to it (4)
I believe the answer is:
Here is my best explanation:
'it makes one feel better i wouldn't say no to it' is the definition.
The definition suggests a singular noun which matches the answer.
'parking in a bad way' is the subsidiary indication.
'parking' becomes 'p'.
'in a bad way' becomes 'ill' (I've seen this before).
'if' is the link.
(Other definitions for pill that I've seen before include "Pellet of medicine", "Medication", "Lozenge", "Medicinal pellet", "Tablet", "nuisance to put up with", "Form of medicine", "Medical tablet", "Medicinal tablet" and "TABLET".)