Sleeps in the centre of ornate campsite (4)
I believe the answer is:
naps
'sleeps' is the definition.
(I know this)
'centre of ornate campsite' is the wordplay.
'centre of' indicates the central letters.
'campsite' becomes 'ps' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The middle letters of 'ornate' are 'na'.
'na'+'ps'='NAPS'
'in the' is the link.
Can you help me to learn more?
(Other definitions for naps that I've seen before include "Span including short sleeps" , "Takes forty winks" , "Tips; sleeps" , "Snoozes" .)