Partly resemble mysterious symbol (6)

I believe the answer is:

emblem

'symbol' is the definition.
(I know that emblem is a type of symbol)

'partly resemble mysterious' is the wordplay.
'partly' indicates a hidden word (part of the clue is used).
'EMBLEM' can be found hidden inside 'resemble mysterious'.

(Other definitions for emblem that I've seen before include "Badge, token" , "Symbolic device or badge" , "Symbol or hallmark" , "Mark" , "Visible symbol of an abstract idea" .)

I've seen this clue in The Telegraph.

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