Starters of biriyani, roti and vadam. Oh, well done (5)
I believe the answer is:
bravo
'well done' is the definition.
(I've seen this before)
'starters of biriyani roti and vadam oh' is the wordplay.
'starters of' says to take the initial letters.
'oh' becomes 'o'.
The initial letters of 'biriyani roti and vadam' is 'brav'.
'brav'+'o'='BRAVO'
(Other definitions for bravo that I've seen before include "Well done; B (radio)" , "Cry of approbation" , "Shout of approval" , "B in radio communications" , "I applaud you!" .)