Have a fling with two royals who've departed in recent times (9)
I believe the answer is:
philander
'have' is the definition.
The definition and answer can be both to do with communicating as well as being verbs in their base form.
Perhaps there's a link between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for philander that I've seen before include "Womanise" , "Have an affair" , "Womanize" , "Play around" , "Have affairs" .)