See about bed father gets without charge (4-4)
I believe the answer is:
scot-free
'without charge' is the definition.
(to get off scot-free is to avoid punishment)
'see about bed father' is the wordplay.
'about' indicates putting letters inside.
'bed' becomes 'cot' (cot is a kind of bed).
'father' becomes 'fr'.
'cot'+'fr'='cotfr'
'see' placed around 'cotfr' is 'SCOT-FREE'.
'gets' acts as a link.
(Other definitions for scot-free that I've seen before include "Without loss or penalty" , "Unharmed, not punished like kilted gent" , "(Get off) without punishment" , "Entirely without penalty or injury" , "'Without any punishment whatsoever (4,4)'" .)