Everything in damp pouch (6)
I believe the answer is:
wallet
'pouch' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
'everything in damp' is the wordplay.
'everything' becomes 'all' (all things).
'in' indicates putting letters inside.
'damp' becomes 'wet' (similar in meaning).
'all' put inside 'wet' is 'WALLET'.
Can you help me to learn more?
(Other definitions for wallet that I've seen before include "A man's pocket-book" , "Pocket case for money and documents" , "Small flat money case" , "Money-holder" , "Pocket-size case" .)