Clue: Repeated rhythm: how to make par (and golf as well as pals!) (8)
Answer: BACKBEAT
Explanation: Definition: Repeated rhythm
BACK BEAT could be a cryptic instruction to reverse 'beat'. 
You can reverse 'rap'='beat' to make "par"; OR reverse 'flog'='beat' to make "golf"; OR reverse 'slap'='beat' to make "pals"