Unclear over Press Association question's point (6)
I believe the answer is:
opaque
'unclear' is the definition.
('opaque' is associated in meaning with 'unclear')
'over press association question's point' is the wordplay.
'over' becomes 'o' (cricket abbreviation).
'press association' becomes 'pa' (abbreviation for Press Association).
'question' becomes 'qu'.
'point' becomes 'e' (E is an example).
'o'+'pa'+'qu'+'e'='OPAQUE'
(Other definitions for opaque that I've seen before include "Incomprehensible, impenetrable" , "Cloudy, non-transparent" , "Mysterious" , "Not clearly expressed" , "Not transmitting or reflecting light" .)