Please help with 3 clues.
21 down.Clue is:One subtracted from prime;ten plus its square root.I have ?A?I?G
10 across.Clue is:Did regularly cross page make it up with duke.I have ??BED
10 down.Clue is:A bit of exercise seconds before drinking rounds.I have ??E?S UP.Is it press up?
Many thanks.