Band take off with drug (6)
I believe the answer is:
stripe
'band' is the definition.
(I know that band can be written as stripe)
'take off with drug' is the wordplay.
I cannot quite see how this works, but
'take' could be 'strip' (stripping is a kind of taking) and 'strip' is found in the answer.
'drug' could be 'e' (E is another name for ecstasy) and 'e' is found within the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for stripe that I've seen before include "Chevron; band" , "Chevron indicating rank" , "Narrow band of colour" , "Sign of a soldier's rank" , "bar" .)