Edge around gloomy devoted worshipper (7)
I believe the answer is:
pilgrim
'devoted worshipper' is the definition.
'pilgrim' can be an answer for 'worshipper' (pilgrim is a kind of worshipper). I am not sure about the 'devoted' bit.
'edge around gloomy' is the wordplay.
'edge' becomes 'lip' (lip is a kind of edge).
'around' says the letters should be written in reverse.
'gloomy' becomes 'grim' (I've seen this in another clue).
'lip' reversed gives 'pil'.
'pil'+'grim'='PILGRIM'
Can you help me to learn more?
(Other definitions for pilgrim that I've seen before include "Traveller to shrine etc" , "Wayfarer to holy site" , "traveller wanting to visit shrine" , "Visitor to shrine" , "Traveller (who made Progress?)" .)