Groundbreaker (7)
'groundbreaker' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pioneer that I've seen before include "Launch" , "Ripe one (anag.)" , "First to explore a new area" , "spacecraft" , "Innovator; early settler" .)
'groundbreaker?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hoe that I've seen before include "Attend to beds" , "Weeding tool" , "Romanians (anag) -- European enclave" , "Purple gem" , "Weed" .)