For starters, only chiropractors can identify place under the back of the head (7)
I believe the answer is:
occiput
'the back of the head' is the definition.
(I've seen this before)
'for starters only chiropractors can identify place under' is the wordplay.
'for starters' suggests taking the first letters.
'place' becomes 'put' ('put' can be a synonym of 'place'**).
'under' is a charade indicator (letters next to each other).
The first letters of 'only chiropractors can identify' is 'occi'.
'occi'+'put'='OCCIPUT'
(Other definitions for occiput that I've seen before include "bit of the bonce" , "Back part of the skull" , "Head's back" , "back of one's head" , "Back of the head (anatomy)" .)