Habit (6)
'habit' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for mannerism that I've seen before include "Italian art?" , "Habitual gesture" , "Idiosyncrasy" , "Distinctive personal way of doing something" , "Habitual way of behaving" .)
'habit' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rote that I've seen before include "mindless activity?" , "Unthinking repetition" , "Learn by ____ (repetition)" , "By . . . . means by memory - that tore it" , "Way of learning" .)
'habit' is the definition.
(I know that habit is a kind of garb)
This is all the clue.
(Other definitions for garb that I've seen before include "Clothes to brag about" , "Fashion of dress" , "Clothe" , "something to wear" , "costume" .)
'habit' is the definition.
(I know that habit can be written as wont)
This is the entire clue.
(Other definitions for wont that I've seen before include "Action habitually associated with someone" , "Accustomed" , "Succinct refusal" , "customary behaviour" , "Habit" .)
'habit' is the definition.
(I know that attire is a type of habit)
This is all the clue.
(Other definitions for attire that I've seen before include "12" , "Wear" , "'Dress, garb (6)'" , "Formal clothing" , "Clothes worn" .)
'habit' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for custom that I've seen before include "Accepted or habitual practice" , "'Habit, practice (6)'" , "Usual practice" , "Tradition; habit" , "Traditional activity or practice" .)