Related Clues:

• Sign on many doors
• Reply to knocking
• Log in
• Penetrate middle of America, although no Conservative
• Some recent errors in attendance register
• Put down log
• Some recent errors in the register
• Start to penetrate
• Compete in and make a record
• Go in and find woodworker has dropped the fish
• Put down English conservationists with little hesitation
• Treen (anag.)
• Hospital department about to be put back - go in!
• Points to list with recruit
• Be admitted to hospital department's emergency room