A little treasure (5)
I believe the answer is:
jewel
This might be a double definition.
'a little' is the first definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'treasure' is the second definition.
(jewel is a kind of treasure)
Can you help me to learn more?
(Other definitions for jewel that I've seen before include "Gemstone" , "(Semi) precious stone" , "The - That Was Ours (Dexter)" , "Gem" , "Precious stone or mineral" .)