Meat sauce and bread (grub at intervals) (4)
I believe the answer is:
ragu
'meat sauce' is the definition.
'ragu' can be an answer for 'sauce' (Italian cooking sauce). I'm not sure about the 'meat' bit.
'bread grub at intervals' is the wordplay.
'at intervals' indicates alternate letters (letters taken at regular intervals).
'bread'+'grub'='breadgrub'
The alternate letters of 'breadgrub' are 'RAGU'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for ragu that I've seen before include "tomato and meat sauce" , "pasta sauce" .)