Convolutes things putting citrus peel on top of spritzer (6)
I believe the answer is:
twists
'convolutes' is the definition.
('twist' can be a synonym of 'convolute')
'putting citrus peel on top of spritzer' is the wordplay.
I cannot really understand how this works, but
'top' could be 'ist' (resembles 1st) and 'ist' is found within the answer.
This explanation may well be incorrect...
'things' acts as a link.
Can you help me to learn more?
(Other definitions for twists that I've seen before include "Rotates; distorts" , "Interweaves or gives spiral form to" , "Wrenches round" , "Wrenches out of normal shape" , "Forms into a spiral shape" .)