Friday’s solutions:

Across: - 1 Pugilism. 6 Press. 10 Indians. 11 Urethra. 12 Agree. 13 Renounced. 14 Proverb. 16 Insular. 17 Igneous. 19 Perturb. 21 Trimester. 23 Tibia. 24 Emerald. 25 Isolate. 26 Theme. 27 Yuletide.

Down: - 2 Undergo. 3 Inane. 4 Inscribes. 5 Mourn. 6 Precursor. 7 Ethical. 8 Standard bearer. 9 Disappointment. 15 Exonerate. 16 Impartial. 18 Naivete. 20 Upbraid. 22 Today. 23 Trout.