Oberon blackbird? (5)
I believe the answer is:
merle
This clue could be a double definition.
'oberon' is the first definition.
Both the definition and answer are singular nouns.
Maybe you can see an association between them that I don't see?
'blackbird?' is the second definition.
('merle' can be a synonym of 'blackbird')
Can you help me to learn more?
(Other definitions for merle that I've seen before include "Bird" , "Oberon perhaps" .)