Make worse (6)
'make worse' is the definition.
(synonyms)
This is all the clue.
(Other definitions for aggravate that I've seen before include "Pester" , "Worsen" , "Make (a problem) worse" , "Make more serious" , "Exasperate or exacerbate" .)
'make worse' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for exacerbate that I've seen before include "Provoke" , "Make (a bad thing) worse" , "Worsen" .)
'make worse' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for deteriorate that I've seen before include "Slip" , "Get worse" , "Gradually worsen" , "Become progressively worse" , "Go downhill" .)
'make worse' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for impair that I've seen before include "Damage or handicap" , "Hobble" , "Spoil, degrade" , "blunt" , "Weaken, damage" .)