New supermarket across Norway impossible, I'm afraid (2,3,2)
I believe the answer is:
no can do
'impossible i'm afraid' is the definition.
'new supermarket across norway' is the wordplay.
'new' becomes 'n'.
'supermarket' becomes 'ocado'.
'across' indicates putting letters inside.
'norway' becomes 'n'.
'ocado' going around 'n' is 'ocando'.
'n'+'ocando'='NO CAN DO'
(Other definitions for no can do that I've seen before include "That's not possible" , "off-putting response" , "Unable to help" , "Bring-a-bottle party?" , "Nothing manageable" .)