Custom-built garment? (5)
I believe the answer is:
habit
This could be a double definition.
'custom' is the first definition.
(I know that habit is a type of custom)
'built garment?' is the second definition.
'habit' can be an answer for 'garment?' (thesaurus). I am not sure about the 'built' bit.
Can you help me to learn more?
(Other definitions for habit that I've seen before include "Custom or monk's robe" , "Custom; clothing" , "bent" , "It's second nature" , "Addiction to a drug" .)