### Clue: Up in arms (7)
### Answer: RAMPANT 
 ### Explanation: Definition: Up in arms
  Cryptic defn: Not the usual meaning of being furious, but a descriptive term in heraldry of a beast rearing up on its hind leg in a coat-of-arms.  The term is also specific about which leg, which way it's facing, and how its other legs and tail are positioned!  A compact clue requiring lateral thinking.