### Clue: Cheek of young male holding race for second (7)
### Answer: BUTTOCK 
 ### Explanation: Definition: Cheek
 BUCK(a young male of some animals, or a spirited young man)**containing**(holding) [TT(abbrev. for "Tourist Tropy", the annual motorcycle races held on the Isle of Man) + **2nd letter of**(… second) "for " ] .