1A - ME + [Nata]N + A + C[uti]E: "crossword constructor", "setter" and the like can be used to mean I or ME (also, Natan Last is an actual constructor and his puzzles can get pretty tricky)
4A - middles of teenAgers discOurse containing MM
8A - INFINIT[-E] + LOVE (without L and O) after I[ntimacy] + S[pouse]
9A - raSPY ROars
10A - OVER + T[he]
11A - HER< + AB
13A - PRIUS + M[odels] E[ngineered] without U and S, "like 2017" is the definition as that happens to be a prime number)