I put in chives and soys, stirring soup (11)
I believe the answer is:
vichyssoise
'soup' is the definition.
(thesaurus)
'i put in chives and soys stirring' is the wordplay.
'put in' is an insertion indicator.
'and' says to put letters next to each other (I've seen this in other clues).
'stirring' indicates anagramming the letters.
'chives' put after 'soys' is 'soyschives'.
'soyschives' is an anagram of 'vchyssoise'.
'i' going inside 'vchyssoise' is 'VICHYSSOISE'.
(Other definitions for vichyssoise that I've seen before include "Cold potato and leek soup" , "Thick, chilled French soup" , "Chilled leek soup" , "Creamy soup, served chilled" .)