Cross about bird with posh daughter in crowd (9)
I believe the answer is:
multitude
'crowd' is the definition.
(I've seen this before)
'cross about bird with posh daughter' is the wordplay.
I cannot really understand how this works, but
'cross' could be 't' (shape) and 't' is found within the answer.
'posh' could be 'u' (abbreviation for upper-class - opposite to non-U) and 'u' is found within the answer.
'daughter' could be 'd' (genealogical abbreviation) and 'd' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'in' acts as a link.
Can you help me to learn more?
(Other definitions for multitude that I've seen before include "Large number (of things)" , "Large number of people" , "Mob, crowd, throng" , "Legion" , "A great crowd or throng" .)