### Clue: First of balls found in broken urinal behind entrance of tennis court (8)
### Answer: TRIBUNAL 
 ### Explanation: Definition: court
 [ **1st letter of**(First of) "balls" **contained in**(found in) **anagram of**(broken) URINAL] **placed after**(behind) **1st letter of**(entrance of) "tennis".
Defn: … of justice.