These are the full down clues, if that helps:
DOWN
1 Bridge (non ludus chartarum sed iter in flumine factum) (4)
2 You — just you, mind — sped up pretty quickly (13)
3 I bound with a chain, ____ (6,5)
4 I carried through and accomplished, confeci (6)
6 For one coming up and overtaking (dat. sing. pres. part.) (13)
7 Sleeplessness (f.) — or the dreams (n. pl.) that might cause it (8)
10 He echoes, in surround sound: qua totum Nereus ____ orbem, Ovid Met. 1.187 (11)
12 Hanging, or weighing — dat. & abl. pres. part. sing. (8)
15 I completely destroy (verbum Livio historico gratiosum) (6)
17 Wrap up the sails! (4)