One who walked with Isaac in the outskirts of Hanover? (5)
I believe the answer is:
hiker
'one who walked' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'isaac in the outskirts of hanover?' is the wordplay.
'isaac' becomes 'ike' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in the' indicates putting letters inside.
'outskirts of' says to hollow out the word (remove centre letters) (only letters on the outskirts).
'hanover' with its centre taken out is 'hr'.
'ike' going inside 'hr' is 'HIKER'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for hiker that I've seen before include "Country walker" , "Someone walking (with backpack?)" , "Backpacker" , "Person on long walk" , "Long-distance walker" .)