The most common and most likely answer to this crossword clue is the 10 letter word SPEECHLESS
I've seen this crossword clue in The Guardian
S
P
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C
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More clues leading to the result SPEECHLESS
Buddy explains!
The straight part
We know that "Amazed/totally lost for words" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case amazed/totally lost for words = speechless.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 SPEECHLESS mean?
SPEECHLESS adjective- Not speaking; not knowing what to say; silent, especially due to surprise, amazement, etc.
- Incapable of being spoken or uttered
- Unfit or not permitted to be spoken or described.
- Extremely bad or objectionable.