Innovator in camp up and about (6)
I believe the answer is:
edison
'innovator' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'camp up and about' is the wordplay.
'camp' becomes 'side' (both can mean a group or faction).
'up' shows that the letters should be reversed in order (in down clue: letters go upwards).
'and' means one lot of letters go next to another.
'about' becomes 'on' (as in a book 'on' a certain topic).
'side' back-to-front is 'edis'.
'edis'+'on'='EDISON'
'in' is the link.
Can you help me to learn more?
(Other definitions for edison that I've seen before include "US inventor of phonograph, electric light etc." , "US inventor of over 1,000 devices" , "Early American inventor" , "Inventor's" , "No side to this american inventor" .)