Engage in some shenanigans (4)
I believe the answer is:
mesh
'engage' is the definition.
('mesh' can be a synonym of 'engage')
'in some shenanigans' is the wordplay.
'in' indicates the answer is hidden within the clue.
'MESH' can be found hidden inside 'some shenanigans'.
(Other definitions for mesh that I've seen before include "Netting; engage" , "Interlock" , "Entangle, entwine" , "Lattice" , "Work well together" .)