Crossword Genius

Wheel lining beer tun in development (5,4)

Ross

I believe the answer is:

inner tube

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

'wheel lining' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'beer tun in development' is the wordplay.
'development' indicates anagramming the letters.
'beer'+'tun'+'in'='beertunin'
'beertunin' is an anagram of 'INNER TUBE'.

Can you help me to learn more?

(Other definitions for inner tube that I've seen before include "rubber ring" , "Circle line?" , "What cyclist pumps up" , "inflatable ring" , "Tyre filler" .)

I've seen this clue in The Independent.
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