Streets hold record footfalls (5)
I believe the answer is:
steps
'footfalls' is the definition.
(I've seen this in another clue)
'streets hold record' is the wordplay.
'streets' becomes 'sts' (I can't explain this - if you can you should believe this answer much more).
'hold' means one lot of letters goes inside another.
'record' becomes 'EP' (abbreviation for extended play record).
'sts' going around 'ep' is 'STEPS'.
Can you help me to learn more?
(Other definitions for steps that I've seen before include "stair" , "Procedures" , "Stiles" , "taken to get on" , "dancing?" .)