Mad Hatter unsure where to dig for gold? (8,4)
I believe the answer is:
treasure hunt
'where to dig for gold?' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'mad hatter unsure' is the wordplay.
'mad' indicates an anagram.
'hatter'+'unsure'='hatterunsure'
'hatterunsure' anagrammed gives 'TREASURE HUNT'.
Can you help me to learn more?
(Other definitions for treasure hunt that I've seen before include "as recent London marchers apparently do?" , "Exciting quest" , "Game in which players search for hidden objects by following a trail of clues" , "possible rally activity" , "Organised search for hidden goodies" .)