Possible Clues:

• Food that goes with a nip?
• In the end, keen beginner cut-up by position taken by diving instructor perhaps
• Lorry driver finally mislaid food
• Food for schoolboys
• ___ in your shirt
• Put to bed, with 'in'
• Pleat; food
• Food trapped, starter refused
• Stitched pleat or fold
• Position of diver fixed, beginning to spring off