I have a go at the French attempt to worship image (8)
I believe the answer is:
idolatry
'worship image' is the definition.
(idolatry is the worship of images)
'i have a go at the french attempt' is the wordplay.
'have a go' becomes 'do' (have a go can mean to do something).
'at' is a charade indicator (letters next to each other).
'the french' becomes 'la' ('the' in French).
'attempt' becomes 'try' (synonyms).
'i'+'do'+'la'+'try'='IDOLATRY'
'to' is the link.
(Other definitions for idolatry that I've seen before include "Adulation" , "Hero worship" , "Worship of godly images" , "Graven image worship" , "Dilatory way of worshipping" .)