Reveals that the record fails (9)
I believe the answer is:
discloses
'reveals' is the definition.
(disclosing is a kind of revealing)
'the record fails' is the wordplay.
'the record' becomes 'disc' (eg a CD, compact disc).
'fails' becomes 'loses' (I've seen this before).
'disc'+'loses'='DISCLOSES'
'that' acts as a link.
(Other definitions for discloses that I've seen before include "Gives info" , "leaks" .)