Clue: … where to see punter's tips for Chepstow and Musselburgh? (3)
Answer: CAM
Explanation: … where to see punter's tips for Chepstow and Musselburgh? (3)
[*tips for*] **C**(hepstow) **A**(nd) **M**(usselburgh) 
 
 
*The Cam is the river which flows past Cambridge University, and punts are flat boats propelled by "punters" using lock sticks.