Have opening of present delayed (3)
I believe the answer is:
own
'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'
Can you help me to learn more?
(Other definitions for own that I've seen before include "Possess or confess" , "Posses" , "Private" , "Allow" , "Personal; possess" .)