One of the Sitwells noted it here in the centre (5)
I believe the answer is:
edith
'one of the sitwells' is the definition.
(Edith Sitwell)
'noted it here in the centre' is the wordplay.
'in the centre' indicates a hidden word.
'EDITH' can be found hidden inside 'noted it here'.
(Other definitions for edith that I've seen before include "Woman's name" , "Female name" , "Osbert's sister" , "- Cavell, WW 1 heroine" , "Eg Cavell" .)