Possible Clues:

• Cause to begin, launch
• What I did in the restaurant for a start
• To start with I took my meal in it
• For starters, that's where I was fed in there
• Start to accept new members
• Bring up a topic or prepare the way for
• For a start it could be in 13 across that I had a meal in
• Cause to begin or admit to membership
• To start with I was fed in it
• One sort of egg I consumed as pioneer