Enquiry's led with nothing odd in mind (5)
I believe the answer is:
nurse
'mind' is the definition.
(thesaurus)
'enquiry's led with nothing odd' is the wordplay.
'with nothing odd' indicates alternate letters (letters in odd-numbered positions removed).
'enquirys'+'led'='enquirysled'
The alternate letters of 'enquirysled' are 'NURSE'.
'in' acts as a link.
(Other definitions for nurse that I've seen before include "Look after the sick" , "Who cares" , "Nanny" , "Tend the sick" , "Trained carer" .)