Discombobulate the riding fraternity? (5)
I believe the answer is:
upset
'discombobulate' is the definition.
(I know that discombobulate is a more specific form of the action the upset)
'riding fraternity?' is the wordplay.
'riding' becomes 'up' (I've seen this in other clues).
'fraternity?' becomes 'set' (I can't explain this - if you can you should believe this answer much more).
'up'+'set'='UPSET'
'the' is the link.
Can you help me to learn more?
(Other definitions for upset that I've seen before include "Unexpected result" , "Overturn, tip over" , "Distraught" , "Overturn or discompose" , "emotional" .)