Discover rebellious nature with missing card (7)

I believe the answer is:

unearth

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'discover' is the definition.
(thesaurus)

'rebellious nature with missing card' is the wordplay.
'rebellious' is an anagram indicator.
'with missing card' becomes 'h' (I can't justify this - if you can you should believe this answer much more).
'nature' anagrammed gives 'uneart'.
'uneart'+'h'='UNEARTH'

Can you help me to learn more?

(Other definitions for unearth that I've seen before include "Expose" , "Disinter" , "Cut a certain wire" , "Discover" , "Exhume" .)

I've seen this clue in The Telegraph.

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