Deity in charge of terror (5)
I believe the answer is:
panic
'terror' is the definition.
(synonyms)
'deity in charge' is the wordplay.
'deity' becomes 'pan' (Pan is an example).
'in charge' becomes 'ic' (abbreviation for 'in charge').
'pan'+'ic'='PANIC'
'of' is the link.
(Other definitions for panic that I've seen before include "State of overwhelming fear" , "mass hysteria?" , "Extreme fear" , "Sudden feeling of terror" , "Horror" .)