clark

careful, developed, good, over

I need to note that "clark" as an adjective doesn't exist in standard English. "Clark" is primarily a proper noun (a name) or an archaic noun meaning a clerk or scribe. There appears to be an error in the task parameters. Could you clarify if

party

The opposition party clashed with clark over the new education policy.

he'll, kent, kirby, superman, trail

Superman's secret identity as Clark Kent was finally revealed to the world.