Combined, like some soup containing whiskey? (7)
I believe the answer is:
twinned
'combined' is the definition.
Both the answer and definition are adjectives. Maybe there's an association between them I don't understand?
'some soup containing whiskey?' is the wordplay.
'some soup' becomes 'tinned' (I can't explain this - if you can you should believe this answer much more).
'containing' is an insertion indicator.
'whiskey?' becomes 'W' (phonetic alphabet: alpha, bravo, charlie etc.).
'tinned' placed around 'w' is 'TWINNED'.
'like' is the link.
Can you help me to learn more?
(Other definitions for twinned that I've seen before include "Coupled together" , "Similarly connected" , "Enjoying a link" , "Some towns are" , "(Town) linked with one abroad" .)