Mass churchgoers, for example going around African capital (14)
I believe the answer is:
conglomeration
'mass' is the definition.
(thesaurus)
'churchgoers for example going around african capital' is the wordplay.
I cannot really see how this works, but
'going' could be 'on' (both can mean functioning or activated) and 'on' is located in the answer.
'around' could be 'o' (a round letter) and 'o' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for conglomeration that I've seen before include "Collection or jumble of things" , "Gathering" , "pile" , "Large group of merged companies" .)