One litter bin in the street is hardly enough (5)
I believe the answer is:
scant
'hardly enough' is the definition.
(I've seen this in another clue)
'one litter bin in the street' is the wordplay.
'one litter bin' becomes 'can' (I can't explain this - if you can you should give a lot more credence to this answer).
'in the' is an insertion indicator.
'street' becomes 'st' (abbreviation).
'can' put into 'st' is 'SCANT'.
'is' is the link.
Can you help me to learn more?
(Other definitions for scant that I've seen before include "Little" , "Limited, inadequate" , "Bare" , "Cursory" , "In short supply" .)