Have opening of present delayed (3)

I believe the answer is:

own

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'have' is the definition.
(to have something is to own it)

'opening of present delayed' is the wordplay.
'opening' indicates taking the first letters.
'present delayed' becomes 'wn' (I can't explain this - if you can you should believe this answer much more).
The initial letter of 'of' is 'o'.
'o'+'wn'='OWN'

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(Other definitions for own that I've seen before include "Possess or confess" , "Posses" , "Private" , "Allow" , "Personal; possess" .)

I've seen this clue in The Independent.

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