Not going straight, got trapped (8)
I believe the answer is:
cornered
'trapped' is the definition.
(synonyms)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for cornered that I've seen before include "Unable to escape" , "Caught in position with no escape, like rat" , "went round the bend" , "Having no way out" , "Monopolised the market" .)