Returning in lilac Cadillac, see old Asian capital (5)
I believe the answer is:
dacca
'asian capital' is the definition.
(I've seen this in another clue)
'returning in lilac cadillac see' is the wordplay.
'returning' shows that the letters should be reversed in order.
'in' indicates the answer is hidden within the clue.
'accad' is hidden in the letters of 'lilac cadillac see'.
'accad' written backwards gives 'DACCA'.
'old' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for dacca that I've seen before include "Capital of Bangladesh (older spelling)" , "Until 1982 name of the capital of Bangladesh" .)