One planning newspaper lives on the fringes of Exmoor (9)
I believe the answer is:
organiser
'one planning' is the definition.
I know nothing about this answer so I can't tell whether this works.
'newspaper lives on the fringes of exmoor' is the wordplay.
'newspaper' becomes 'organ' (I've seen this before).
'lives' becomes 'is' ('be' can be a synonym of 'live').
'on' is a charade indicator (letters next to each other).
'the fringes of' means to remove the middle letters.
'exmoor' with its middle removed is 'er'.
'organ'+'is'+'er'='ORGANISER'
Can you help me to learn more?
(Other definitions for organiser that I've seen before include "One in charge" , "impresario" , "bound to keep personal data" , "Maker of arrangements" , "One who arranges things" .)