Two young fellows in New York arranged to board with her (8)
I believe the answer is:
landlady
'two' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for landlady that I've seen before include "Provider of digs" , "She takes in lodgers" , "Lodging keeper" , "Woman leasing property" , "Woman who keeps lodgings" .)