Twbydy-am-by-3 Guide

If the answer is just ? "twbydy" = two by two = square, "am" = morning = A.M., "by 3" = ×3? Not fitting.

But without more context, the cleanest match to a 3-letter "piece" is (as in a piece of something) — but the wordplay "twbydy" doesn't yield that.

Alternatively: the answer might be (Roman 3) as the "piece". twbydy-am-by-3

But the simplest interpretation: = two-by-two = 4; "am" = AM; "by 3" = next to 3 → "4AM beside 3" → puzzle answer "TRI" (three) as the piece.

(Roman numeral for 3, "piece" as in a piece of a set). If the answer is just

Given typical puzzle answer lengths, is a clue for "AM" with something? No.

But in cryptic crosswords: "piece" often means a part or a chess piece. "by 3" = tri- prefix. Could "twbydy" be "two b y d y" → musical notes? B, D? But without more context, the cleanest match to

Given the cryptic style, I suspect ; "am" = morning = "AM"; "by" = next to; "3" = three letters; total maybe "FOUR AM" → anagram?