Crossword Genius

Crafty student producing debugger? (3,7)

Ross

I believe the answer is:

fly swatter

I'm a little stuck... Click here to teach me more about this clue!

'debugger?' is the definition.
I can't tell whether this defines the answer.

'crafty student' is the wordplay.
'crafty' becomes 'fly' (fly can mean shrewd or crafty).
'student' becomes 'swatter' (I can't justify this - if you can you should give a lot more credence to this answer).
'fly'+'swatter'='FLY-SWATTER'

'producing' acts as a link.

Can you help me to learn more?

(Other definitions for fly swatter that I've seen before include "For insect repeller" , "Insect killing device" .)

I've seen this clue in The Independent.
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