Father reviewed creator’s patent (8)
I believe the answer is:
apparent
'patent' is the definition.
(synonyms)
'father reviewed creator's' is the wordplay.
'father' becomes 'pa' (pa can mean dad or father).
'reviewed' shows that the letters should be reversed in order.
'creator' becomes 'parent' (I can't justify this - if you can you should give a lot more credence to this answer).
'pa' back-to-front is 'ap'.
'ap'+'parent'='APPARENT'
Can you help me to learn more?
(Other definitions for apparent that I've seen before include "readily understood" , "cut , book written on a page" , "Obvious, clearly understood" , "Seeming to be but not necessarily so" , "Pane part may be quite obvious" .)