Dagwood's dog (5)
I believe the answer is:
daisy
'dagwood's dog' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for daisy that I've seen before include "bloomer" , "Old song: '. . . . ., . . . . . give me your answer, do'" , "Lawn flower, weed" , "Common wild flower" , "girl" .)