Vow (5)
'vow' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for oath that I've seen before include "Tedious task" , "Solemn vow" , "Swearword or solemn word" , "Sworn declaration" , "Curse - sworn statement" .)
'vow' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pledge that I've seen before include "Promise, word of honour" , "make toast" , "Promise, oath" , "Give one's word" , "Plight" .)
'vow' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for promise that I've seen before include "Hopeful sign" , "Betroth" , "Pledge - my word!" , "plight?" , "Guarantee" .)
'vow' is the definition.
(swearing is a kind of vowing)
This is the entire clue.
(Other definitions for swear that I've seen before include "Avow" , "Affirm" , "Solemnly promise" , "Emit oath or take vow" , "Promise on oath" .)