Mention endlessly, maybe, how trains should run (2,4)
I believe the answer is:
on time
'trains should run' is the definition.
I can't tell whether this defines the answer.
'mention endlessly maybe' is the wordplay.
'endlessly' means to remove the last letter.
'maybe' is an anagram indicator.
'mention' with its last letter taken off is 'mentio'.
'mentio' anagrammed gives 'ON TIME'.
'how' acts as a link.
Can you help me to learn more?
(Other definitions for on time that I've seen before include "Not running late" , "Prompt" , "as expected" , "without delay" , "promptly" .)