### Clue: Foolish rugby player with sex appeal attends regularly (4-6)
### Answer: HALF-WITTED 
 ### Explanation: Definition: Foolish
 HALF(short for "half back"/a rugby player playing in a position between the attacking forwards and the defending full backs) + W(abbrev. for "with") + IT(sex appeal, as in the "it girls") + **2nd, 4th and 6th letters of**(… regularly) "attends".