Storage for blades US fort deployed around start of month (5-3)

'storage' is the definition.
Both the definition and answer are singular nouns.
Perhaps there's a link between them I don't understand?

'blades us fort deployed around start of month' is the wordplay.
I cannot really see how this works, but
'around' could be 'o' (a round letter) and 'o' is found in the answer.
'month' could be 'feb' (abbreviation for February) and 'feb' is found in the answer.
This explanation may well be incorrect...

'for' acts as a link.

Can you help me to learn more?