The most common and most likely answer to this crossword clue is the 9 letter word EMACIATED
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More clues leading to the result EMACIATED
- Eastern spies with yoked clothing wasted
- Half-starved spies held by English couple died
- Lean meat diced briefly in a stew with head of artichoke
- Acetamide mixture might be too thin
- Endgame involving agents in rescue bid finally wasted
- I reached over and devoured a little bit of duck without much meat on the bone
- Too thin after a diet came out?
- Came up with a diet change for the undernourished
- Came up with a diet to get to size-zero, possibly
- Came back with a diet designed for the undernourished
Buddy explains!

The straight part
We know that "terribly thin" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case terribly thin = emaciated.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does EMACIATED mean?
EMACIATED verb- To make extremely thin or wasted.
- To become extremely thin or wasted.
- Thin or haggard, especially from hunger or disease.