Questions:

1. aluminium approvals hm
2. baptise hit
3. gnarliest wat
4. oranger oh
5. madly chia
6. icicle pub
7. bice ass
8. ciao ironsmiths
9. his ply is
10. assayed plaintive commercial

Answers:

1. Human papillomavirus
2. Hepatitis B
3. Genital warts
4. Gonorrhoea (edit if using American English)
5. Chlamydia
6. Pubic lice
7. Scabies (not solely an STI but most often transmitted thus)
8. Trichomoniasis
9. Syphilis
10. Pelvic inflammatory disease