Possible Clues:

• Likewise, one was 9 across what you give him
• Present for appointment, having to hold on
• For the present one might get on in time
• Get on at the inside of this for the present
• Will this give away what gets on in time?
• How the professor swallowed what you gave him
• Give money to charity
• Give euro to screen actor
• Charity's urging
• The professor consumed this for the 20 across