Said it's after a flying insect
I believe the answer is:
'a flying insect' is the definition.
(I've seen this before)
'said it's after' is the wordplay.
'said' becomes 'be' (I can't explain this - if you can you should give a lot more credence to this answer).
'it' becomes 'e' ('e' can mean 'electronic' which is similar to 'IT').
'after' means one lot of letters go next to another.
Can you help me to learn more?
(Other definitions for bee that I've seen before include "Hairy-bodied insect" , "Useful insect" , "Social worker possibly" , "Insect that bumbles?" , "Hymenopterous insect" .)