It sounds much like the truth (11)

'truth' is the definition.
The answer and definition are not the same part of speech.

'it sounds much like' is the wordplay.
I cannot really understand how this works, but
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found in the answer.
'like' could be 'similar' (synonyms) and 'similar' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

'the' is the link.

Can you help me to learn more?