Clever Clue Nominees

Please vote for the best clue from December (either by email or comments below). The Clever Clue of the Month will be announced on Monday.

Creature that always uses the 

sidewalk?...............................CRAB 

Competition in which the winner always 

gets the last word?.....................BEE

There's one in this cule................ERROR

Canniest, for instance..................ANAGRAM

Heat-storing device.....................HOLSTER 

Offering from a master of deduction?....TAXTIP