To begin with (3,1,7)

'to begin with' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for for a start that I've seen before include "In the first place" , "To begin with" , "initially" .)
'to begin with' is the definition.
(I've seen this in another clue)
This is all the clue.
(Another definition for firstly that I've seen is " Primarily".)
'to begin with' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for in the first place that I've seen before include "Where Adam and Eve sinned" , "Where the winner would be" , "to begin with" , "for a start" , "originally" .)
'to begin with' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for for starters that I've seen before include "In favour of race officials" , "at first" , "To begin with (colloq.)" .)
'to begin with' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for first that I've seen before include ""Eclipse _____ ..." , "Top university degree" , "Premier (except in football!)" , "The one that precedes all others, in time say" , "Leading" .)