Do they have pressing business? (5)
I believe the answer is:
irons
'they have pressing business?' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for irons that I've seen before include "Metal shackles and golf clubs" , "cuffs" , "Metal-headed golfclubs" , "Fetters, handcuffs" , "Don't have too many in the fire, we're told" .)