Rich cake found back in imperial Ceylon (6)
I believe the answer is:
eclair
'rich cake' is the definition.
'eclair' can be an answer for 'cake' (I've seen this before). I am not certain of the 'rich' bit.
'back in imperial ceylon' is the wordplay.
'back' says the letters should be written backwards.
'in' indicates the answer is hidden within the clue.
'rialce' is hidden within 'imperial ceylon'.
'rialce' backwards is 'ECLAIR'.
'found' is the link.
Can you help me to learn more?
(Other definitions for eclair that I've seen before include "Type of cream cake" , "Long chocolate cake for Claire" , "comedian Jenny?" , "Cake, "long in shape but short in duration"" , "Long (but not long-lasting) cake" .)