They offer more than one way of looking at things (8)
I believe the answer is:
bifocals
'looking at things' is the definition.
The definition suggests a plural noun which matches the answer. I also know that 'looking' relates to this answer.
'they offer more than one way of' is the wordplay.
I cannot really understand how this works, but
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
'way' could be 's' (Compass direction - South) and 's' is located in the answer.
'of' could be 'o' and 'o' is located in the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for bifocals that I've seen before include "Type of specs" , "Type of glasses" , "Eye-glasses with two ranges" , "Two-lenses-in-one specs" , "Spectacles for both near and far vision" .)