Doctors sent out this evening complain vehemently (7)
I believe the answer is:
inveigh
'complain vehemently' is the definition.
'inveigh' can be an answer for 'complain' (inveighing is a kind of complaining). I'm not sure about the 'vehemently' bit.
'doctors sent out this evening' is the wordplay.
'doctors' is an anagram indicator.
'out' is a deletion indicator.
'this'+'evening'='thisevening'
'thisevening' with 'sent' removed is 'hiveing'.
'hiveing' with letters rearranged gives 'INVEIGH'.
Can you help me to learn more?
(Other definitions for inveigh that I've seen before include "sound off" , "Complain about - abuse" , "Speak strongly (against)" , "Speak violently" , "Attack violently or bitterly in words" .)