Related Clues:

• On holiday, writing becomes casual
• Offensively nonchalant
• Casual worker appears after not working
• Casual worker, unwell earlier
• Former European politician in split that's unplanned
• Tons in river added to maintain pressure without planning
• Casual, nonchalant
• Ungraciously nonchalant
• Improvise as supplier of a cross, exactly what's needed
• When necessary
• Casually inconsiderate
• Rotten worker, curt
• Meaning of 'PRN' on a prescription
• Ad-lib from former European politician in shot
• Event in which police backed soldiers spontaneously