Examines source of protein found in bugs (8)
I believe the answer is:
inspects
'examines' is the definition.
(inspecting is a kind of examining)
'source of protein found in bugs' is the wordplay.
'source of protein' becomes 'p' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'found in' means one lot of letters goes inside another.
'bugs' becomes 'insects' (I've seen this before).
'p' put inside 'insects' is 'INSPECTS'.
Can you help me to learn more?
(Other definitions for inspects that I've seen before include "Examines carefully" , "Looks closely at something" , "Examines, subjects to scrutiny" , "acts as an Observer" , "Scrutinises" .)