Earthenware toilet traps queen (7)
I believe the answer is:
pottery
'earthenware' is the definition.
(I know that earthenware can be written as pottery)
'toilet traps queen' is the wordplay.
I cannot quite see how this works, but
'toilet' could be 'pot' (synonyms) and 'pot' is located in the answer.
'queen' could be 'er' (abbreviation for Elizabeth Regina) and 'er' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for pottery that I've seen before include "Goods of fired clay" , "baked goods" , "China, for example" , "Earthenware" , "Items made from clay" .)