Make the alert go away entirely (10)
I believe the answer is:
altogether
'entirely' is the definition.
(synonyms)
'make the alert go' is the wordplay.
'make' indicates anagramming the letters.
'the'+'alert'+'go'='thealertgo'
'thealertgo' is an anagram of 'ALTOGETHER'.
'away' is the link.
This may not be correct. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for altogether that I've seen before include "Wholly" , "Completely, in total" , "special to get Hermes trousers" , "nude in this" , "totally" .)