Shares two pints with Queen and son (8)
I believe the answer is:
quarters
'shares' is the definition.
'two pints with queen and son' is the wordplay.
'two pints' becomes 'quart' (I've seen this before).
'with' is a charade indicator (letters next to each other).
'queen' becomes 'er' (abbreviation for Elizabeth Regina).
'and' is a charade indicator (letters next to each other).
'son' becomes 's'.
'quart'+'er'+'s'='QUARTERS'
(Other definitions for quarters that I've seen before include "Digs" , "Subdivides" , "Rooms, lodgings" , "foreign coins" , "Place (for married soldiers) to live" .)