About to give the chest (6)
I believe the answer is:
coffer
'the chest' is the definition.
(coffer is a kind of chest)
'about to give' is the wordplay.
'about to' becomes 'c' (I can't explain this - if you can you should give a lot more credence to this answer).
'give' becomes 'offer' (offering is a kind of giving).
'c'+'offer'='COFFER'
Can you help me to learn more?
(Other definitions for coffer that I've seen before include "Money chest sounds like one with lung trouble" , "A large strong box for valuables" , "Chest for storing valuables" , "safe" , "Strongbox" .)