Barbarian aboard boat, regularly getting fare from Asia (5)
I believe the answer is:
bhuna
'fare from asia' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'barbarian aboard boat regularly' is the wordplay.
'barbarian' becomes 'hun' (as in Atilla the Hun).
'aboard' is an insertion indicator.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
The alternate letters of 'boat' are 'ba'.
'hun' going within 'ba' is 'BHUNA'.
'getting' acts as a link.
Can you help me to learn more?
(Other definitions for bhuna that I've seen before include "curry" , "hot dish" .)