Crossword Genius

Jumbo, say, may open a real can of worms (9)

Ross

I believe the answer is:

aeroplane

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

'can of worms' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'jumbo say may open a real' is the wordplay.
'jumbo say' becomes 'a' (I can't explain this - if you can you should give a lot more credence to this answer).
'may' indicates an anagram (I've seen 'might' mean this (I've seen this in other clues)).
'open'+'real'='openreal'
'openreal' is an anagram of 'eroplane'.
'a'+'eroplane'='AEROPLANE'

Can you help me to learn more?

(Other definitions for aeroplane that I've seen before include "Fixed-wing aircraft" , "Lancaster?" , "What taxis" , "Spitfire, for example" , "crate?" .)

I've seen this clue in the Sydney Morning Herald.
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