Even temperature for Earth? (6)
I believe the answer is:
planet
'earth?' is the definition.
(Earth is an example)
'even temperature' is the wordplay.
'even' becomes 'plane' ('plane' can be similar in meaning to 'even').
'temperature' becomes 't' (abbreviation).
'plane'+'t'='PLANET'
'for' is the link.
(Other definitions for planet that I've seen before include "Large satellite of star" , "Large celestial body" , "Celestial body orbiting around a star" , "Orbiting body in the heavens" , "Heavenly (or earthly!) body" .)