What the Derby may mean to an American? (3)
I believe the answer is:
hat
'an american?' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'what the derby may mean' is the wordplay.
'HAT' is hidden within the letters.
However, I'm uncertain how the hidden word is indicated.
'to' is the link.
Can you help me to learn more?
(Other definitions for hat that I've seen before include "opera?" , "Head-covering" , "Headdress" , "One to cover head" , "e.g. Pork pie" .)