Close to the centre (5)
I believe the answer is:
inner
'close to the centre' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for inner that I've seen before include "Located or occurring closer to a centre" , "Nearer the middle" , "Exclusive to a center" , "Target next to the bull's-eye on a dart board" , "Target next to bull" .)