I come down around noon away from the sea (6)
I believe the answer is:
inland
'away from the sea' is the definition.
(I've seen this before)
'i come down around noon' is the wordplay.
'come down' becomes 'land' (I've seen this before).
'around' means one lot of letters goes inside another.
'noon' becomes 'n'.
'i'+'land'='iland'
'iland' going around 'n' is 'INLAND'.
(Other definitions for inland that I've seen before include "Remote from the 3 Dn" , "Away from the shore" , "Away from the sea" , "towards a country's interior" , "from the seaside" .)