Agreed starting point for white queen? (4)
I believe the answer is:
done
'agreed' is the definition.
(I've seen this before)
'starting point for white queen?' is the wordplay.
'starting point' becomes 'one' (I've seen this in another clue).
'for' says to put letters next to each other (I've seen this in other clues).
'white queen?' becomes 'd' (I can't justify this - if you can you should give a lot more credence to this answer).
'one' put after 'd' is 'DONE'.
Can you help me to learn more?
(Other definitions for done that I've seen before include "Swindled" , "Thoroughly cooked; accomplished" , "This sort of thing is socially acceptable" , "This settled" , "Achieved" .)