Discovered android with electronic instrument (4)
I believe the answer is:
oboe
'instrument' is the definition.
(type of musical instrument)
'discovered android with electronic' is the wordplay.
'discovered' means to look at the middle letters (dis-covered - outer letters removed).
'android' becomes 'robot' (I've seen this before).
'with' means one lot of letters go next to another.
'electronic' becomes 'e' (as in e-mail or e-books).
The middle letters of 'robot' are 'obo'.
'obo'+'e'='OBOE'
(Other definitions for oboe that I've seen before include "source of notes" , "Instrument used in 1d" , "Woodwind instrument of treble pitch" , "Double-reeded woodwind instrument" , "blow it!" .)