Nick is brought back in central location (6)
I believe the answer is:
collar
'nick' is the definition.
(I've seen this before)
'brought back in central location' is the wordplay.
'brought back' shows that the letters should be reversed in order.
'in' indicates the answer is hidden within the clue.
'ralloc' is hidden in the letters of 'central location'.
'ralloc' back-to-front is 'COLLAR'.
'is' is the link.
(Other definitions for collar that I've seen before include "Nick" , "Appropriate - piece of neckwear" , "Grab one" , "Be hot under the . . . . . . to be angry or resentful" , "Arrest - part of garment" .)