Library’s trident repelled lass, logically? (6)
I believe the answer is:
dalton
'library's' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for dalton that I've seen before include "[LAWMAKER] ?" , "English scientist" , "John --, English chemist and physicist" , "John -, chemist who proposed theory of atoms" .)