How do I solve 18 across in Daily Telegraph Cryptic 31234?

Question

Accepted Answer

18 across reads "Sport with lanes in PE with Bolt winning stupidly ..." (6,7 letters); the answer is TENPINBOWLING. It's an anagram clue: the answer is a rearrangement of letters supplied by the clue itself. Look for an indicator like 'mixed', 'broken', 'cooked', or 'wild', and find a phrase whose letters add up to the answer's length. The full step-by-step breakdown is on this page.

Sport with lanes in PE with Bolt winning stupidly ... (6,7)

18A — Sport with lanes in PE with Bolt winning stupidly ... (6,7) — TENPINBOWLING