Sleazy date with daddy after vacation (5)
I believe the answer is:
seedy
'sleazy' is the definition.
('seedy' can be a synonym of 'sleazy')
'date with daddy after vacation' is the wordplay.
'date' becomes 'see' ('see' can be a synonym of 'date'**).
'with' says to put letters next to each other.
'after vacation' means to remove the middle letters (the inside letters must vacate).
'daddy' with its centre taken out is 'dy'.
'see'+'dy'='SEEDY'
(Other definitions for seedy that I've seen before include "Nasty and squalid" , "Not well turned out" , "Pip is" , "under the weather" , "Unseemly" .)