Feature provided by architect is arc strangely positioned (14)
I believe the answer is:
characteristic
'feature' is the definition.
('characteristic' can be a synonym of 'feature')
'architect is arc strangely positioned' is the wordplay.
'strangely positioned' indicates anagramming the letters.
'architect'+'is'+'arc'='architectisarc'
'architectisarc' with letters rearranged gives 'CHARACTERISTIC'.
'provided by' is the link.
(Other definitions for characteristic that I've seen before include "Typical (of a person or thing)" , "Distinctive" , "Trait" , "Typical of a particular person" , "Feature, quality" .)