Agreed to return after short dip (7)
I believe the answer is:
curtsey
'agreed to return after short dip' is the definition.
I can't judge whether this defines the answer.
'agreed to return after short dip' is the wordplay.
'agreed' becomes 'yes' (I've seen this before).
'to return' says the letters should be written in reverse.
'after' says to put letters next to each other.
'short dip' becomes 'curt' (I can't explain this - if you can you should believe this answer much more).
'yes' back-to-front is 'sey'.
'sey' after 'curt' is 'CURTSEY'.
Can you help me to learn more?
(Other definitions for curtsey that I've seen before include "Girl's bob" , "Gesture of respect" , "Formal greeting, bob" , "old form of obeisance" , "Respectful greeting" .)