Possible Clues:

• Clear of the sea bottom
• Now that the anchor is up, it sounds as if we can get going
• A sound procedure when an anchor is being lifted
• No longer stuck in bed — not at home, by the sound of it
• Off, say, when no longer hooked in the main
• Raised at sea, in a manner of speaking?
• Word shouted with ''Anchors''
• Of anchor, hanging just clear of sea-bed
• Off the bed (as anchor)
• Just up from bed, off to speak