A band going across Africa and many other places (7)
I believe the answer is:
equator
'a band going across africa and many other places' is the definition.
(the equator is a band or line going through Africa)
'a band' is the wordplay.
I cannot really see how this works, but
'a' is within the answer.
'band' could be 'o' (I've seen this in other clues) and 'o' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for equator that I've seen before include "Imaginary ring around the earth's centre" , "Important line" , "Earth's north-south dividing line" , "Line of zero latitude" , "Imaginary line around the earth's centre" .)