Drone blasts began in person (5,5)
I believe the answer is:
human being
'person' is the definition.
(I know that person can be written as human being)
'drone blasts began in' is the wordplay.
'drone' becomes 'hum' (drone can mean to make a humming sound).
'blasts' indicates anagramming the letters (I've seen 'blasted' mean this).
'began'+'in'='beganin'
'beganin' is an anagram of 'anbeing'.
'hum'+'anbeing'='HUMAN BEING'
(Other definitions for human being that I've seen before include "person" , "soul" .)