No heroes worked in such a small town (3-5)
I believe the answer is:
one-horse
'such a small town' is the definition.
I can't tell whether this definition defines the answer.
'no heroes worked' is the wordplay.
'worked' is an anagram indicator.
'no'+'heroes'='noheroes'
'noheroes' anagrammed gives 'ONE-HORSE'.
'in' is the link.
Can you help me to learn more?
(Other definitions for one-horse that I've seen before include "Drawn by a single nag" , "(Of a town) having few facilities" , "With only a single equine, the town is very small" , "(Of a town) small and lacking in amenities" , "(Of a place) poor and lacking amenities" .)