Network backing urgent desire for charm (7)
I believe the answer is:
bewitch
'charm' is the definition.
(synonyms)
'network backing urgent desire' is the wordplay.
'network' becomes 'web' (synonyms).
'backing' says the letters should be written in reverse.
'urgent desire' becomes 'itch' (itch is a kind of desire. I am not sure about the 'urgent' bit.).
'web' backwards is 'bew'.
'bew'+'itch'='BEWITCH'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for bewitch that I've seen before include "Enchant - or curse" , "intrigue" , "Spellbind" , "add glamour" , "Entrance" .)