Yes!

Just upload the single first, and then upload the entire album (including the single) as a separate release. Once the full release is in streaming services, you can choose to leave the single, or remove it and only have the album version available.

Note: If you use your existing ISRCs, the exact same audio file as in your original upload, same metadata (track titles, artist name, etc.) this might help retain play counts/playlists for the single in some streaming services.