Clean practices (7)
I believe the answer is:
hygiene
'clean practices' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for hygiene that I've seen before include "Condition promoting sanitary practices" , "Principles and practice of cleanliness" , "Healthy cleanliness" , "Sanitary practices conducive to health" , "Practice of cleanliness to maintain health" .)