Character displayed by those cycling (5)
I believe the answer is:
ethos
'character' is the definition.
(thesaurus)
'those cycling' is the wordplay.
'cycling' indicates an anagram.
'those' anagrammed gives 'ETHOS'.
'displayed by' acts as a link.
(Other definitions for ethos that I've seen before include "Philosophy" , "General disposition" , "Distinctive group spirit" , "Society values" , "Moral significance" .)