A German Clint whipped for an early slide projector (5,7)

I believe the answer is:

magic lantern

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'slide projector' is the definition.
(magic lantern is a kind of slide projector)

'a german clint whipped' is the wordplay.
'whipped' indicates anagramming the letters.
'a'+'german'+'clint'='agermanclint'
'agermanclint' anagrammed gives 'MAGIC LANTERN'.

'for an early' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for magic lantern that I've seen before include "system to project a bright image" , "Early projector" , "It projects" , "Old slide projector" , "slide show, thanks to this?" .)

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

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