Earlier
'earlier' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for prior that I've seen before include "Pre-existing, religious head" , "High ranking person in monastery" , "Clergyman - earlier" , "Previous; abbot's deputy" , "Former - monk" .)
'earlier' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for afore that I've seen before include "formerly" , "Previously" , "Earlier" , "In front of" , "in the van a while back" .)
'earlier' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for previous that I've seen before include "form" , "Overhasty; existing earlier" , "Overly hasty in acting or in drawing a conclusion" , "earlier convictions" , "Foregoing" .)
'earlier' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for before that I've seen before include "On a previous occasion" , "In sight of" , "In front of or previous to" , "Earlier in time" , "Defy, withstand" .)
'earlier' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for sooner that I've seen before include "Earlier or preferably" , "native of Oklahoma" , "Earlier; more willingly" , "Rather" , "Earlier than previously thought" .)
'earlier' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for ago that I've seen before include "In past times" , "Previously" , "Back (in time)" , "Time past" , "Gone, past, since" .)
'earlier' is the definition.
(beforehand can mean earlier)
This is the entire clue.
(Other definitions for beforehand that I've seen before include "In advance" , "Previously" , "Earlier" .)