Possible Clues:

• Sea-creature with plenty of feeling
• A month's work for large, influential organization
• After a month there's enough work for eight in arms there
• Tentacled marine mollusc
• Army work for a month?
• It takes a firm turn and many limbs to make this 16 across
• During the autumn there's work for this in the sea
• Tentacled, shell-less mollusc
• A month's work on the bed
• After a month the work had one well-armed