Escort has tea with Juan the despot (8)
I believe the answer is:
chaperon
'escort' is the definition.
(chaperoning is a kind of escorting)
'tea with juan the despot' is the wordplay.
I cannot quite see how this works, but
'tea' could be 'cha' (cha is a type of tea) and 'cha' is located in the answer.
The remaining letters 'peron' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
'has' acts as a link.
Can you help me to learn more?
(Other definitions for chaperon that I've seen before include "Woman supervising girl" , "Attendant" , "One accompanies and looks after another person or group" , "One accompanies to supervise" , "Preach on about older woman supervisor" .)