Feature affected space and time (6)
I believe the answer is:
aspect
'feature' is the definition.
(feature can mean a quality or aspect of something)
'affected space and time' is the wordplay.
'affected' indicates an anagram.
'and' says to put letters next to each other.
'time' becomes 't' (abbreviation).
'space' is an anagram of 'aspec'.
'aspec'+'t'='ASPECT'
(Other definitions for aspect that I've seen before include "Point of view or appearance" , "Look; side of building" , "View, panorama" , "Vista, panorama" , "Particular part or feature of something" .)