Embedded with techno IT, cello certainly echoed one's memory (12)

I believe the answer is:

recollection

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

'memory' is the definition.
(recollection is a kind of memory)

'embedded with techno it cello certainly echoed one's' is the wordplay.
'RECOLLECTION' is hidden back-to-front in amongst the letters.
However, I'm uncertain how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for recollection that I've seen before include "mental image" , "Memory" , "Remembrance" , "Recall" .)

I've seen this clue in The Telegraph.

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