Cooperation in Somalia is ongoing (7)
I believe the answer is:
liaison
'cooperation' is the definition.
(I've seen this before)
'in somalia is ongoing' is the wordplay.
'in' indicates the answer is hidden within the clue.
'LIAISON' can be found hidden inside 'somalia is ongoing'.
(Other definitions for liaison that I've seen before include "Association" , "A contact or affair" , "Intermediary" , "Co-operation; love affair" , "An affair or mediation" .)