How do I solve 22 across in Times Cryptic 3295?

Question

Accepted Answer

22 across reads "Stuart regularly avoided tasteless stuff" (3 letters); the answer is TAT. It's a letter-selection clue: take specific letters from a longer source. 'First of' means the opening letter, 'extremely' means first + last, 'regularly' means every other letter, 'oddly' / 'evenly' means odd or even positions. The full step-by-step breakdown is on this page.

Stuart regularly avoided tasteless stuff (3)

22A — Stuart regularly avoided tasteless stuff (3) — TAT