Surely lie around being relaxed (9)
I believe the answer is:
leisurely
'being relaxed' is the definition.
(I've seen this before)
'surely lie around' is the wordplay.
'around' indicates an anagram.
'surely'+'lie'='surelylie'
'surelylie' anagrammed gives 'LEISURELY'.
(Other definitions for leisurely that I've seen before include "Sue Reilly for being relaxed" , "Slow-moving" , "Not forced" , "Unhurried, taking one's time" , "Laid-back" .)