Deep fear of an extract of seaweed? (3)

I believe the answer is:

awe

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'deep fear' is the definition.

'an extract of seaweed?' is the wordplay.
'an extract of' indicates a hidden word (I've seen this in other clues).
'AWE' can be found hidden inside 'seaweed'.

'of' is the link.

Can you help me to learn more?

(Other definitions for awe that I've seen before include "Profound respect" , "Overwhelming admiration" , "Wide-eyed wonder" , "Feeling of reverence" , "Reverential respect" .)

I've seen this clue in the Evening Standard.

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