Watch Bob leaving date (4,3)
I believe the answer is:
take out
This clue could be a double definition.
'watch bob' is the first definition.
'take out' can be an answer for 'bob' (thesaurus). I am not sure about the 'watch' bit.
'date' is the second definition.
(to take someone out is to date them)
'leaving' acts as a link.
Can you help me to learn more?
(Other definitions for take out that I've seen before include "Bump off" , "Remove from within" , "Extract; kill" , "Remove; escort" , "Kill (colloq.)" .)