Does groundbreaking work is a phrase that describes a job that involves the use of tools to break up the ground in order to prepare it for planting or other activities. The crossword solutions for this phrase are MINES (5 letters), TILLS (5 letters), and HOES (4 letters). Mining is the process of extracting minerals from the earth, and a miner is someone who does this type of work. Tilling is the process of breaking up the soil in order to make it more suitable for planting, and a tiller is someone who does this type of work. Hoeing is the process of using a hoe to break up the soil and remove weeds, and a hoe is a tool used for this purpose. All of these activities are considered to be groundbreaking work.