Customary practice (5)
'customary practice' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for usage that I've seen before include "etiquette" , "Way of treating" , "Terminology - custom" , "Treatment, practice" , "Convention" .)
'customary practice' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for habit that I've seen before include "addictive practice" , "Riding garment" , "Breaking this is hard" , "It's second nature" , "Monk's robe or repetitive action" .)