Laggards dressed in their best? (4,4)
I believe the answer is:
glad rags
'their best?' is the definition.
I can't judge whether this defines the answer.
'laggards dressed' is the wordplay.
'dressed' is an anagram indicator ('dress' can mean 'prepare').
'laggards' anagrammed gives 'GLAD RAGS'.
'in' is the link.
Can you help me to learn more?
(Other definitions for glad rags that I've seen before include "Special kit" , "Smart clothes (for a special occasion)" , "What partygoers showed up in" , "Dressy clothes in happy shreds" , "Best clothes worn for special occasions" .)