Like some cheesy spin-off, craving to admit a call for attention (7)

I believe the answer is:

wheyish

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

'some cheesy spin-off craving to admit a call for attention' is the wordplay.
'some cheesy spin-off craving' becomes 'wish' (I can't explain this - if you can you should give a lot more credence to this answer).
'to admit' means one lot of letters goes inside another.
'a call for attention' becomes 'hey' (I've seen this before).
'wish' going around 'hey' is 'WHEYISH'.

Can you help me to learn more?

I've seen this clue in The Independent.

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