Country into mango lassis (6)
I believe the answer is:
angola
'country' is the definition.
(Angola is an example)
'into mango lassis' is the wordplay.
'into' indicates the answer is hidden within the clue.
'ANGOLA' is hidden in the letters of 'mango lassis'.
(Other definitions for angola that I've seen before include "African country, former Portuguese colony" , "South-west African country, capital Luanda" , "SW African country" , "Luanda is its capital city" , "Country of south-western Africa" .)