We turned up to be enthralled by dog showing charm (7)
I believe the answer is:
bewitch
'charm' is the definition.
(I know that charm can be written as bewitch)
'we turned up to be enthralled by dog' is the wordplay.
'turned up' says the letters should be written backwards.
'to be enthralled by' indicates putting letters inside ('enthral' can mean 'capture').
'dog' becomes 'bitch' (I've seen this before).
'we' back-to-front is 'ew'.
'ew' going into 'bitch' is 'BEWITCH'.
'showing' acts as a link.
(Other definitions for bewitch that I've seen before include "Cast a spell upon" , "Entrance" , "Put under a spell, or delight" , "add glamour" , "Put under a magic spell, or charm" .)