Loaf or tile, possibly (6)
I believe the answer is:
loiter
'loaf' is the definition.
(synonyms)
'or tile possibly' is the wordplay.
'possibly' indicates anagramming the letters.
'or'+'tile'='ortile'
'ortile' is an anagram of 'LOITER'.
(Other definitions for loiter that I've seen before include "Stand around idly" , "be on stand-by?" , "Tarry like toiler" , "Linger, tarry" , "Linger aimlessly" .)