Because (3)
'because' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for for that I've seen before include "In support of" , "On behalf of" , "Favouring" , "See 24" , "Approving" .)
'because' is the definition.
(both can mean as a result of)
This is the entire clue.
(Other definitions for since that I've seen before include "Because; ago" , "From that time one" , "in the past" , "Seeing that" .)