The most common and most likely answer to this crossword clue is the 6 letter word FARMER
I've seen this crossword clue in The Daily Telegraph
F
A
R
M
E
R
More clues leading to the result FARMER
- Person having stock of bacteria for germ warfare — murder, ultimately
- One rearing fish perhaps in distant French sea
- Fellow developing mare, right?
- Continual growth is important to his industry
- Distant sea abroad for one normally on the land
- One grows mass military force boosted with queen’s support
- Agriculturist's reference brought up about authority
- Female with new mare, right?
- One sowing fear about accepting hollow reform
- Crossword Pun:
Buddy explains!

The straight part
We know that "one normally on the land" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one normally on the land = farmer.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does FARMER mean?
FARMER noun- A person who works the land and/or who keeps livestock, especially on a farm.
- Agent noun of farm; someone or something that farms.
- One who takes taxes, customs, excise, or other duties, to collect for a certain rate per cent.
- The lord of the field, or one who farms the lot and cope of the crown.