Convert I trusted remains of no value (8)

I believe the answer is:

detritus

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

'remains of no value' is the definition.
'detritus' can be an answer for 'remains' (I've seen this before). I am not certain of the 'of no value' bit.

'convert i trusted' is the wordplay.
'convert' is an anagram indicator (I've seen this in other clues).
'i'+'trusted'='itrusted'
'itrusted' anagrammed gives 'DETRITUS'.

Can you help me to learn more?

(Other definitions for detritus that I've seen before include "Rubbish - it rusted (anag)" , "Debris, rubble" , "Accumulated debris" , "Any kind of debris" , "waste material" .)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.