On the western circuit, a crashed rider was in trouble (7)
I believe the answer is:
worried
'trouble' is the definition.
(I know that trouble can be written as worried)
'on the western circuit a crashed rider' is the wordplay.
'on' says to put letters next to each other.
'the western' becomes 'w'.
'circuit' becomes 'o' ().
'a crashed' is an anagram indicator.
'rider' with letters rearranged gives 'rried'.
'w' next to 'o' is 'wo'.
'wo'+'rried'='WORRIED'
'was in' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for worried that I've seen before include "Afraid" , "Concerned, anxious, troubled" , "Was unduly anxious" , "far from calm" , "Apprehensive" .)