The speaker feels like someone whose moment has passed. The title, "Has-been," says as much, and the opening lines make it concrete: "times now gone took me / and all my ink with them." Time hasn't just moved on without the speaker; it has carried off their ability to write, with the ink standing in for voice, work and purpose.
What comes next is oddly resigned. The speaker plans to "employ some puppet / to see for me," which suggests handing the job of looking at the world to a stand-in, perhaps because their own eyes, or their own words, no longer feel up to it. There's a hint of dry humor here, and a little bitterness too.
The ending is quiet and practical: a bottle of wine in the pocket, and a walk "through dark weather." Judging by these images, the speaker isn't fighting the decline but facing it with a shrug and a drink. The mood is wistful, a bit gloomy, but also stubborn and wry.