Surely (6)
'surely' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for no doubt that I've seen before include "To be sure" , "Bound to, unquestionably" , "sign of agreement" , "Almost certainly" , "Surely" .)
'surely' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for indeed that I've seen before include "Yes, truthfully" , "Expression of interest, incredulity or contempt" , "To be sure" , "Certainty" , "In truth, in fact" .)