Crossed wires in game show? (4)
I believe the answer is:
mesh
'crossed wires' is the definition.
(I've seen this before)
'in game show?' is the wordplay.
'in' indicates the answer is hidden within the clue.
'MESH' can be found hidden inside 'game show'.
(Other definitions for mesh that I've seen before include "Work well together" , "Network fabric - engage with it" , "Knit or weave for Shem" , "fit together" , "Engage; net" .)