Freeze last of bolognese in single container (3,2)
I believe the answer is:
ice up
'freeze' is the definition.
(I've seen this before)
'last of bolognese in single container' is the wordplay.
'last of' indicates one should take the final letters.
'in' indicates putting letters inside.
'single' becomes 'I' (I as in one).
'container' becomes 'cup' (cup is a kind of container).
The last letter of 'bolognese' is 'e'.
'i'+'cup'='icup'
'e' put inside 'icup' is 'ICE-UP'.
(Other definitions for ice up that I've seen before include "get coat" , "become frozen" , "Completely freeze" .)