Don't concern yourself now seat adjusted (2,5)
I believe the answer is:
no sweat
'don't concern yourself' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'now seat adjusted' is the wordplay.
'adjusted' indicates an anagram.
'now'+'seat'='nowseat'
'nowseat' with letters rearranged gives 'NO SWEAT'.
Can you help me to learn more?
(Other definitions for no sweat that I've seen before include "There shouldn't be any objection" , "East won (anag)" , "easily done" , "That's not a problem!" , "That won't be a problem" .)