Goes off nursing a cold and one searches everywhere for (6)
I believe the answer is:
scours
'one searches everywhere for' is the definition.
I can't judge whether this definition defines the answer.
'goes off nursing a cold' is the wordplay.
'goes off' becomes 'sours' (I've seen this in another clue).
'nursing' indicates putting letters inside.
'a cold' becomes 'c' (eg on taps).
'sours' enclosing 'c' is 'SCOURS'.
'and' is the link.
Can you help me to learn more?
(Other definitions for scours that I've seen before include "runs for cattle" , "Cleans by rubbing wiht something abrasive" , "Cleans by rubbing with rough material" , "Cleans by hard rubbing." , "Searches thoroughly or cleans abrasively" .)