How do I solve 19 across in Daily Telegraph Cryptic 31241?

Question

Accepted Answer

19 across reads "Score less than 100" (6 letters); the answer is EIGHTY. It's a cryptic definition: the whole clue is a playful or punny description of the answer. No wordplay decomposition to do — read laterally and identify what's being described. The full step-by-step breakdown is on this page.

Score less than 100 (6)

19A — Score less than 100 (6) — EIGHTY