Nice parent? Pure and simple (4)
I believe the answer is:
mere
This clue is a triple definition!
'nice parent?' is the first definition.
('mother' in French, eg in Nice)
'pure' is the second definition.
(I've seen this before)
'and' acts as a link.
'simple' is the third definition.
('mere' can be a synonym of 'simple')
(Other definitions for mere that I've seen before include "Just an English lake" , "Unimpressive" , "Pond, only what is said" , "Lake - French mother" , "of no significance" .)