Wake-up call to reel in vile trade (8)
I believe the answer is:
reveille
'wake-up call' is the definition.
(military wake-up call played on an instrument)
'reel in vile trade' is the wordplay.
I cannot really understand how this works, but
an anagram of 'vile' is 'veil' which is present in the answer.
an anagram of 'reel' is 'rele' which is located in the remaining letters.
This accounts for all the letters.
This explanation may well be incorrect...
'to' is the link.
Can you help me to learn more?
(Other definitions for reveille that I've seen before include "Early call" , "Signal to awaken soldiers at daybreak" , "The wake-up army bugle call" , "Early morning sound in the barracks" , "The get-out-of-bed bugle call" .)