Battery needed in a boring dungeon? (3,4)
I believe the answer is:
dry cell
'battery' is the definition.
(I've seen this before)
'in a boring dungeon?' is the wordplay.
I cannot really understand how this works, but
'boring' could be 'dry' (dry can mean dull or boring) and 'dry' is found in the answer.
'dungeon?' could be 'cell' (I've seen this before) and 'cell' is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'needed' is the link.
Can you help me to learn more?
(Other definitions for dry cell that I've seen before include "Kind of battery used in smaller domestic appliances" , "Healthy accommodation for a prisoner" , "Type of battery" , "Source of energy" , "Source of power" .)