Call source and criticise the pot (8)
I believe the answer is:
saucepan
'the pot' is the definition.
(I've seen this before)
'call source and criticise' is the wordplay.
'call source' becomes 'sauce' (I can't justify this - if you can you should give a lot more credence to this answer).
'and' says to put letters next to each other.
'criticise' becomes 'pan' (informal term meaning to criticise heavily).
'sauce'+'pan'='SAUCEPAN'
Can you help me to learn more?
(Other definitions for saucepan that I've seen before include "Cooking utensil" , "pot-boiler?" , "kitchenware" , "Kitchen vessel" , "Cooking vessel" .)