Short piece of verse; jingle (5)
I believe the answer is:
rhyme
This clue is a double definition.
'short piece of verse' is the first definition.
(I've seen this before)
'jingle' is the second definition.
(I've seen this before)
(Other definitions for rhyme that I've seen before include "Correspond in sound" , "Verse, doggerel" , "Short piece of verse" , "'Moon' and 'June' do" , "Box and cox, for example" .)