Figures it's only one among hundreds (5)
I believe the answer is:
cones
'figures' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Perhaps you can see an association between them that I can't see?
'only one among hundreds' is the wordplay.
'only' becomes 'one' (synonyms).
'one among' is an insertion indicator (inserted letters are placed among others).
'hundreds' becomes 'Cs' ('C' can be a synonym of 'hundred').
'one' put into 'cs' is 'CONES'.
'it's' is the link.
Can you help me to learn more?
(Other definitions for cones that I've seen before include "Circular objects with a tapering point" , "Ice-cream holders or fruits of pine trees" , "(Volcano) peaks" , "subject of a former hotline" , "Shapes of wafers for ice-cream" .)