Cook's device beginning to give problem? (7)
I believe the answer is:
griddle
'cook's' is the definition.
(to cook with a griddle)
'device beginning to give problem?' is the wordplay.
I cannot quite see how this works, but
'device' could be 'riddle' (riddle is a kind of device) and 'riddle' is present in the answer.
A single letter 'g' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for griddle that I've seen before include "cooking utensil" , "Flat heated surface used for cooking" , "Cook" , "cooking accessory" , "Heated metal cooking surface" .)