Free, maybe regularly do crossword (7)
I believe the answer is:
absolve
'free' is the definition.
(to absolve is to free or spare from blame)
'maybe regularly do crossword' is the wordplay.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
'do crossword' becomes 'solve' (as in solving a crossword puzzle).
The alternate letters of 'maybe' are 'ab'.
'ab'+'solve'='ABSOLVE'
(Other definitions for absolve that I've seen before include "Forgive sins" , "Declare (someone) free of guilt" , "Discharge" , "Declare (someone) blameless" , "Lob vase (anag.)" .)