Follower of fashion with directions for making punch? (7)
I believe the answer is:
faddist
'follower of fashion' is the definition.
(I've seen this before)
'with directions for making punch?' is the wordplay.
'with' means one lot of letters goes inside another.
'directions for making' becomes 'add' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'punch?' becomes 'fist'.
'add' put inside 'fist' is 'FADDIST'.
Can you help me to learn more?
(Other definitions for faddist that I've seen before include "someone very keen on hobby?" , "follower of fashion" , "He's pernickety!" .)