Mean getting in late, perhaps (6)
I believe the answer is:
entail
'mean' is the definition.
(synonyms)
'getting in late perhaps' is the wordplay.
'getting' is a charade indicator (letters next to each other).
'perhaps' indicates anagramming the letters.
'in' put after 'late' is 'latein'.
'latein' with letters rearranged gives 'ENTAIL'.
(Other definitions for entail that I've seen before include "settlement of estate" , "Inalienable estate" , "Restriction on inheritance" , "If willing, this settles" , "Cut" .)