### Clue: Rowdy rugby lot's leader enters a French yard (6)
### Answer: UNRULY 
 ### Explanation: Definition: Rowdy
 [RU(abbrev. for the sport of rugby union) + **1st letter of**(…'s leader) "lot"] **contained in**(enters) [UN(French for "a") + Y(abbrev. for "yard", the unit of measurement)].