Retired queen having story to tell (6)
I believe the answer is:
relate
'tell' is the definition.
(relating is a kind of telling)
'retired queen having story' is the wordplay.
'retired' is a reversal indicator.
'queen' becomes 'er' (abbreviation for Elizabeth Regina).
'having' means one lot of letters goes inside another.
'story' becomes 'tale' ('tale' can be a synonym of 'story'**).
'er' enclosing 'tale' is 'etaler'.
'etaler' back-to-front is 'RELATE'.
'to' acts as a link.
(Other definitions for relate that I've seen before include "Connect in Tralee" , "Tell - the marriage guidance people" , "Recite - marriage guidance organisation" , "Narrate, tell in detail" , "Narrate or associate" .)