"No doubt!” (4)
'no doubt' is the definition.
(both can be used to express agreement)
This is the entire clue.
(Other definitions for indeed that I've seen before include "To be sure" , "Certainly, quite so" , "Very much so" , "Yes, truthfully" , "''A friend in need is a friend . . . . . .''" .)
'no doubt' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for yes that I've seen before include "OK" , "Affirmative response" , "Yea" , "Pro vote" , "Validating vote" .)