On camera, I mixed drink (9)
I believe the answer is:
americano
'drink' is the definition.
(type of coffee drink)
'on camera i mixed' is the wordplay.
'mixed' is an anagram indicator.
'on'+'camera'+'i'='oncamerai'
'oncamerai' with letters rearranged gives 'AMERICANO'.
(Other definitions for americano that I've seen before include "Espresso diluted with hot water" , "Style of coffee" , "drink" .)