Soak nerd around church (6)
I believe the answer is:
drench
'soak' is the definition.
(I know that soak can be written as drench)
'nerd around church' is the wordplay.
'around' is a reversal indicator.
'church' becomes 'ch' (common abbreviation).
'nerd' backwards is 'dren'.
'dren'+'ch'='DRENCH'
(Other definitions for drench that I've seen before include "Soak, dowse" , "Wet thoroughly, soak" , "Steep, soak" , "Soak or saturate" , "draught?" .)