Giggle at row about motorcycle race-meeting (6)
I believe the answer is:
titter
'giggle' is the definition.
(I know that giggle can be written as titter)
'row about motorcycle race-meeting' is the wordplay.
I cannot really understand how this works, but
'race' could be 'tt' and 'tt' is found in the answer.
'row' could be 'tier' (a tier is a row of things) and 'tier' is found in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
'at' is the link.
Can you help me to learn more?
(Other definitions for titter that I've seen before include "Nervously restrained laugh" , "Silly little laugh" , "A high-pitched nervous laugh" , "Stifled giggle" , "Laugh nervously in high-pitched way" .)