Takes it easy, to some extent, in position (4)
I believe the answer is:
site
'position' is the definition.
(site is a kind of position)
'takes it easy to some extent' is the wordplay.
'to some extent' indicates a hidden word.
'SITE' is hidden within 'takes it easy'.
'in' acts as a link.
(Other definitions for site that I've seen before include "Where something is located" , "Location (of building, dig etc)" , "station" , "Designated place" , "Situation (of a building)" .)