Cross and abusive on the phone (4)
I believe the answer is:
rood
'cross' is the definition.
(term for a crucifix)
'abusive on the phone' is the wordplay.
'abusive' becomes 'rude' (rude can mean abusive or insulting).
'on the phone' shows a homophone (sound like).
'rude' sounds like 'ROOD'.
'and' is the link.
(Other definitions for rood that I've seen before include "Crucifix - old unit of area" , "Area equal to 40 square rods" , "Pole, perch or crucifix" , "Crucifix in church; one quarter of an acre" , "The Holy . . . . was the Cross of Christ" .)