Starts unseemly shenanigans up at lodge which is par for the course (5)
I believe the answer is:
usual
'is par for the course' is the definition.
(I've seen this in another clue)
'starts unseemly shenanigans up at lodge' is the wordplay.
'starts' suggests taking the first letters.
The initial letters of 'unseemly shenanigans up at lodge' is 'USUAL'.
'which' is the link.
(Other definitions for usual that I've seen before include "Normally done" , "Accustomed" , "Stock" , "Common, normal" , "Unexceptional" .)