Having had the van watched, had anticipated it (8)
I believe the answer is:
foreseen
'having had the van' is the definition.
I can't judge whether this definition defines the answer.
'watched had anticipated it' is the wordplay.
I cannot really see how this works, but
'watched' could be 'seen' (I've seen this before) and 'seen' is found within the answer.
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found within the answer.
The remaining letters 'for' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for foreseen that I've seen before include "No surprise" , "Predicted" , "Anticipated" , "Envisaged" , "Expected" .)