Places to deposit flower containers (5)
I believe the answer is:
banks
'flower containers' is the definition.
'banks' can be an answer for 'containers' (bank is a kind of container). I'm not sure about the 'flower' bit.
'places to deposit' is the wordplay.
'places' becomes 's' (I can't justify this - if you can you should believe this answer much more).
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'deposit' becomes 'bank' (bank is a kind of deposit).
's' after 'bank' is 'BANKS'.
Can you help me to learn more?
(Other definitions for banks that I've seen before include "Relies" , "Financial institutions" .)