Good shot of the interior (5)
I believe the answer is:
inner
This clue is a double definition.
'good shot' is the first definition.
(I've seen this before)
'the interior' is the second definition.
(I've seen this in another clue)
'of' is the link.
(Other definitions for inner that I've seen before include "Close to the centre; mental" , "Bull's penned in by this" , "Good shot at archery" , "Situated inside" , "It's next to the bull on the board" .)