Subtle change that made dress outstanding (6)
I believe the answer is:
bustle
'made dress outstanding' is the definition.
I can't tell whether this definition defines the answer.
'subtle change' is the wordplay.
'change' indicates anagramming the letters.
'subtle' with letters rearranged gives 'BUSTLE'.
'that' is the link.
Can you help me to learn more?
(Other definitions for bustle that I've seen before include "Excited activity of subtle kind" , "Fuss about part of woman's dress of old" , "Subtle kind of commotion" , "Hurly-burly" , "used in old fashion accessory" .)