Respected guide meets excursion group going back inside (8)
I believe the answer is:
Here is my best explanation:
'respected' is the definition.
('esteem' can be a synonym of 'respect')
'guide meets excursion group going back inside' is the wordplay.
'inside' indicates a hidden word.
'going back' says the letters should be written in reverse.
'demeetse' is hidden within 'guide meets excursion group'.
'demeetse' back-to-front is 'ESTEEMED'.
(Other definitions for esteemed that I've seen before include "Prized", "Regarded highly", "attracting veneration", "Highly admired", "Respected and appreciated like customer", "Honoured", "Well thought of", "Held in high regard, as customer may be", "Thought highly of, say customer" and "Respected, admired".)