Crossword Genius

Everybody trusts this, oddly (5)

Ross

I believe the answer is:

tutti

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'everybody' is the definition.
I can't tell whether this definition defines the answer.

'trusts this oddly' is the wordplay.
'oddly' means one should take alternating letters (letters in the odd-numbered positions are used).
'trusts'+'this'='truststhis'
The alternate letters of 'truststhis' are 'TUTTI'.

Can you help me to learn more?

(Other definitions for tutti that I've seen before include "All performers (mus.)" , "Instruction for all orchestral instruments to play together" , "(Of an orchestra) all to play together" , "Orchestral passage" , "All (stage direction)" .)

I've seen this clue in The Telegraph.
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