One day of the week, when to look to eat cold stew (9)
I believe the answer is:
fricassee
'stew' is the definition.
(fricassee is a kind of stew)
'one day of the week when to look to eat cold' is the wordplay.
'one day of the week' becomes 'fri' (Fri is an example).
'when' becomes 'as'.
'to look' becomes 'see'.
'to eat' is an insertion indicator.
'cold' becomes 'c' (eg on taps).
'fri'+'as'+'see'='friassee'
'friassee' going around 'c' is 'FRICASSEE'.
(Other definitions for fricassee that I've seen before include "eat this?" , "Dish of stewed pieces of meat in a thick sauce" , "Meat/veg stew, white sauce" , "Stewed or fried pieces of meat served in a thick white sauce" , "chicken feed!" .)