Intended recipient of notice sees red, being replaced (9)
I believe the answer is:
Here is my best explanation:
'intended recipient' is the definition.
(I've seen this before)
'notice sees red being replaced' is the wordplay.
'notice' becomes 'ad'.
'being replaced' indicates an anagram.
'seesred' anagrammed gives 'dressee'.
'of' acts as a link.