Delicacy isn't fashionable in attire — not right! (10)
I believe the answer is:
daintiness
'delicacy' is the definition.
(I know that delicacy can be written as daintiness)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for daintiness that I've seen before include "Gracefully delicate quality" , "Delicacy" .)