Hello everyone, nice to welcome you on our site, this page even has Level 21 answers. I enjoy it =D
Level 21 - LRCAUULT
The answer to this puzzle is:
Words: CURTAL, TRULL, LUAU, LATU, CAUL, CULL, TALC, CULT, LULU, CURT, CARL, TAR, LAC, LAT, TAU, ARC, ALT, RUT
Bonus words:
CURTAL, TRULL, LUAU, LATU, CAUL, CULL, TALC, CULT, LULU, CURT, CARL, TAR, LAC, LAT, TAU, ARC, ALT, RUT