The strike will incur a lot of staggering urgent government business (5-4,4)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

TH~E WHIP (the strike)  contains [will incur] REELIN {g} (staggering} [a lot of]. A written notice, underlined three times to denote urgency, to members of a political party to attend a parliamentary vote.