Condition common to most rail workers with foot rot (7)
I believe the answer is:
ailment
'condition common' is the definition.
'ailment' can be an answer for 'condition' (thesaurus). I am not sure about the 'common' bit.
'most rail workers with foot rot' is the wordplay.
'most' means to remove the first letter.
'workers' becomes 'men' (men can mean staff or employees).
'with' says to put letters next to each other.
'foot' indicates one should take the final letters (I've seen 'foot of' mean this).
The final letter of 'rot' is 't'.
'rail' with its first letter taken off is 'ail'.
'ail'+'men'+'t'='AILMENT'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for ailment that I've seen before include "Tummy upset, for instance" , "Bodily disorder or disease" , "Minor illness" , "infirmity" , "Slight but persistent illness" .)