Praises regulars who get through the course (4)
I believe the answer is:
pass
'the course' is the definition.
(thesaurus)
'praises regulars' is the wordplay.
'regulars' means one should take alternating letters.
The alternate letters of 'praises' are 'PASS'.
'who get through' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for pass that I've seen before include "Overtake; permit" , "Overtake; mountain way" , "Mountain route; come to an end" , "what the Galibier is" , "Go by; col" .)