Indeed allow it to be crossed out (7)
I believe the answer is:
deleted
'be crossed out' is the definition.
(I've seen this in another clue)
'indeed allow it' is the wordplay.
I cannot really understand how this works, but
'allow' could be 'let' (synonyms) and 'let' is found within the answer.
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is located in the answer.
This explanation may well be incorrect...
'to' acts as a link.
Can you help me to learn more?
(Other definitions for deleted that I've seen before include "Effaced" , "Erased" , "Removed" , "Struck out" , "Expunged" .)