A measure of how far writer's in love with lover? (8)
I believe the answer is:
odometer
'a measure' is the definition.
(I have seen 'Measure of progress' mean 'odometer' so perhaps 'measure' could also mean 'odometer')
'writer's in love with lover?' is the wordplay.
'writer' becomes 'me' (the person who wrote the clues).
'in' indicates putting letters inside.
'love' becomes 'o' (love means zero in tennis).
'with' is a charade indicator (letters next to each other).
'lover?' becomes 'doter' (I have seen 'foolish lover' mean 'doter' so perhaps 'lover' could also mean 'doter').
'o'+'doter'='odoter'
'me' going inside 'odoter' is 'ODOMETER'.
'of how far' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for odometer that I've seen before include "Instrument for measuring distance travelled in car" , "Car device that measures miles travelled" , "Instrument in car to record mileage" , "Car-mileage measurer" , "Travel measure" .)