Possible Clues:

• ___ valve (part of an engine)
• Things or quantity imported
• The opposite of 2 down makes Kent A1
• Body of new pupils
• Accepting thanks, marked incomplete batch of students
• Fresh pupils maybe showing one new perspective
• Amount swallowed
• Fool swapped round new recruits
• Let through misprint -- a keen reader might spot 'absorption'
• New recruits