Crossword Genius

I eye Tom’s contraption in a Californian National Park (8)

Ross

I believe the answer is:

yosemite

'a californian national park' is the definition.
(I've seen this before)

'i eye tom's contraption' is the wordplay.
'contraption' indicates an anagram.
'i'+'eye'+'toms'='ieyetoms'
'ieyetoms' with letters rearranged gives 'YOSEMITE'.

'in' is the link.

(Other definitions for yosemite that I've seen before include "Natl. Park in California" , "California falls, valley, park" , "US National Park in California" , "Area of beauty" , "Where there are watery cascades" .)

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