Student’s attention engaged by historic railway (7)
I believe the answer is:
learner
'student's' is the definition.
(someone who is learning)
'attention engaged by historic railway' is the wordplay.
'attention' becomes 'ear' (having someone's ear is having their attention).
'engaged by' indicates putting letters inside (I've seen this in other clues).
'historic railway' becomes 'lner' (I am not sure about the 'historic' bit.).
'ear' going within 'lner' is 'LEARNER'.
Can you help me to learn more?
(Other definitions for learner that I've seen before include "New driver" , "Pupil or apprentice" , "One being taught" , "One with an L-plate" , "He displays the L-plate" .)