Thought to show respect for others? (13)
I believe the answer is:
consideration
This clue is a double definition.
'thought' is the first definition.
(consideration is a kind of thought)
'respect for others?' is the second definition.
(considering others' feelings)
'to show' acts as a link.
(Other definitions for consideration that I've seen before include "Kindness" , "Thoughtfulness - relevant factor" , "Bearing in mind - payment" , "factor to be borne in mind" , "examination" .)