Lincoln is at the back of beyond, in a restful place (4)
I believe the answer is:
abed
'in a restful place' is the definition.
I can't tell whether this defines the answer.
'lincoln is at the back of beyond' is the wordplay.
'lincoln' becomes 'abe' (Abraham Lincoln).
'is at the back of' says to take the final letters (I've seen 'at the back' mean this).
The final letter of 'beyond' is 'd'.
'abe'+'d'='ABED'
Can you help me to learn more?
(Other definitions for abed that I've seen before include "Not yet risen" , "Not yet up (archaic)" , "not exactly stirring" , "Possibly sleeping" , "given blanket coverage?" .)