A big thing in rubber gloves (4)
I believe the answer is:
berg
'a big thing' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'in rubber gloves' is the wordplay.
'in' indicates a hidden word.
'BERG' is hidden within 'rubber gloves'.
Can you help me to learn more?
(Other definitions for berg that I've seen before include "African mount" , "trouble at sea" , "feature of icy waters" , "Small version of ice mountain" , "Large mass of floating ice" .)