Work involved in making soup (4)
I believe the answer is:
opus
'work involved in' is the definition.
'opus' can be an answer for 'work' (an opus is an artistic work). I'm unsure of the 'involved in' bit.
'making soup' is the wordplay.
'making' is an anagram indicator.
'soup' with letters rearranged gives 'OPUS'.
Can you help me to learn more?
(Other definitions for opus that I've seen before include "Showing creative skill" , "Musical composition in the soup" , "Work or composition, usually musical" , "Soup (anag.)" , "Composition - magnum __" .)