1 down. Personal magnetism. 8 letters.
2 down. Poor-quality, cheap. 6 letters.
3 down. Heads of ancient Rome? 6 letters.
4 down. Stupidly stare. 4 letters.
6 down. Reveals if (anag) – one comes to the rescue. 9 letters.
7 down. Exploitative. 9 letters.
12 down. Suggestive (of). 8 letters.
14 down. (Drink) containing low-fat milk. 6 letters.
15 down. Opportune. 6 letters.
17 down. Excited and curious. 4 letters.