How do I solve 20 down in Daily Telegraph Cryptic 31239?

Question

Accepted Answer

20 down reads "Picture of yogi Trevor's holding up" (7 letters); the answer is VERTIGO. It's a hidden-word clue: the answer is spelled out by consecutive letters in the clue itself, often crossing a word boundary. Indicators like 'in', 'some', or 'part of' signal that you're looking at a substring. The full step-by-step breakdown is on this page.

Picture of yogi Trevor's holding up (7)

20D — Picture of yogi Trevor's holding up (7) — VERTIGO