Unsettled wanderers -- we going off for business trips? (7)
I believe the answer is:
errands
'business trips?' is the definition.
'unsettled wanderers we going off' is the wordplay.
'unsettled' indicates anagramming the letters.
'going off' indicates named letters should be taken away.
'wanderers' with 'we' taken out is 'andrers'.
'andrers' anagrammed gives 'ERRANDS'.
'for' is the link.
(Other definitions for errands that I've seen before include "Task-oriented trips" , "Short trips for messages" , "Process for finding how often a number is contained in another" , "Darners (anag.)" , "Short trips to perform commissions" .)