1: Servile son, first prodigal (7)

6: Observed no Knight (5)

7: Period email feature (3)

8: Bringing up the kids - Dad's paying for it (9)

10: Toothpaste brand at Target? (3)

12: Firm rear end (5)

14: Late Greek god betraying no emotion (7)

1: Sounds like a bright child (3).

2: Alternative to following performance needed when a substitution is required. (5)

3: A country, one said, in trouble (9)

4: Concealed hot part of psyche (3)

5: Put a new value on what secret agent is hiding (5)

8: Scheme conclusion for jet set (5)

9: Freeze one mug filled with tea, essentially (3,2)

11: Backblock not all there (3)

13: Sister gets nothing, we hear (3)