Crossword Genius

Zane Grey - occasionally visionary (4)

Ross

I believe the answer is:

aery

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'visionary' is the definition.
Both the definition and answer are adjectives. Maybe they are linked in a way I don't understand?

'zane grey occasionally' is the wordplay.
'occasionally' means one should take alternating letters (letters taken at regular intervals or occasions).
'zane'+'grey'='zanegrey'
The alternating letters of 'zanegrey' are 'AERY'.

Can you help me to learn more?

(Other definitions for aery that I've seen before include "high place" , "ethereal" , "spiritual" .)

I've seen this clue in The Independent.
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