Word Chains....? How good your english is...?

1A. INGEST
2D. GESTURE
3D. SINGING
4D. HAMSTER
5A. SENSING
6D. GINGHAMS
7A. PARENT
8D. LIST LESS
9A. RENTING
10A. TINGE
11D. PREPARE
12A. TUREEN
13A. LESSENS
14A. MENTALIST
15A. REENACTMENT