Puzzle 2

Tense between "past" and "future"

Playing music informally, improvising

Small fictional humanoids from Tolkien's books

Strength to keep going for a long time, endurance

The flow of electric charge around a circuit

Frontiers

Envious

Thin paper sheets for wiping noses

Abstaining from food

To be happy, __ with something, rhymes with seized

Does not finish, goes on forever