Double act no longer seen (4)
I believe the answer is:
dodo
'double act no longer seen' is the definition.
I can't judge whether this defines the answer.
'double act' is the wordplay.
'double' shows that letters should be duplicated.
'act' becomes 'do' (to do is to act or execute a task).
'do' duplicated is 'DODO'.
Can you help me to learn more?
(Other definitions for dodo that I've seen before include "Native of Mauritius" , "Proverbially dead bird" , "silly person" , "Extinct bird of Mauritius, very dead" , "Repetitive extinct animal" .)