Containerfound in street is barely sufficient (5)
I believe the answer is:
scant
'barely sufficient' is the definition.
(I've seen this in another clue)
'containerfound in street' is the wordplay.
'containerfound' becomes 'can' (I can't explain this - if you can you should give a lot more credence to this answer).
'in' is an insertion indicator.
'street' becomes 'st' (abbreviation).
'can' placed inside 'st' is 'SCANT'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for scant that I've seen before include "Deficient, sparing" , "Barely adequate" , "Bare" , "Little" , "Cursory" .)