Aeroplane company held a conference (5)
I believe the answer is:
comet
'aeroplane' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'company held a conference' is the wordplay.
'company' becomes 'co' (abbreviation).
'held a conference' becomes 'met' (I've seen this in another clue).
'co'+'met'='COMET'
Can you help me to learn more?
(Other definitions for comet that I've seen before include "Traveller round sun" , "Shooting star" , "High-flyer" , "Object in space with bright centre and long hazy tail" , "body found in space" .)