Lead off to the valley (4)
I believe the answer is:
dale
'the valley' is the definition.
(dale is a kind of valley)
'lead off' is the wordplay.
'off' is an anagram indicator.
'lead' anagrammed gives 'DALE'.
'to' acts as a link.
(Other definitions for dale that I've seen before include "depression" , "Valley; man's name" , "Lead out of the river valley" , "Valley, particularly in Northern England" , "An English valley" .)