### Clue: Bar beginning to rock, joint almost back in mood (9)
### Answer: TOBLERONE 
 ### Explanation: Definition: Bar
 **Reversal of**(… back) [ **1st letter of**(beginning to) "rock" + "elbow"(the joint between forearm and upper arm) **minus its last letter**(almost) ] **contained in**(in) TONE(mood/a character of a place or situation).