Crossword Genius

A speechless and valued item is foreshadowed (10)

Ross

I believe the answer is:

adumbrated

I'm a little stuck... Click here to teach me more about this clue!

'item is foreshadowed' is the definition.
I can't judge whether this defines the answer.

'a speechless and valued' is the wordplay.
'speechless' becomes 'dumb' (synonyms).
'and' says to put letters next to each other.
'valued' becomes 'rated' ('rate' can be a synonym of 'value').
'a'+'dumb'+'rated'='ADUMBRATED'

Can you help me to learn more?

(Another definition for adumbrated that I've seen is " overshadowed".)

I've seen this clue in the Sydney Morning Herald.
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