Amused when sent the long way round? (8)
I believe the answer is:
diverted
This clue might be a double definition.
'amused' is the first definition.
('divert' can be a synonym of 'amuse')
'sent the long way round?' is the second definition.
'diverted' can be an answer for 'sent' (diverting is a kind of sending). I'm not sure about the 'the long way round?' bit.
'when' acts as a link.
Can you help me to learn more?
(Other definitions for diverted that I've seen before include "Taken out of oneself" , "Change course and entertained" , "was amusing" , "Distracted, entertained" , "Sent traffic in alternative direction" .)