The most common and most likely answer to this crossword clue is the 11 letter word TERRESTRIAL
I've seen this crossword clue in The Daily Telegraph
T
E
R
R
E
S
T
R
I
A
L
More clues leading to the result TERRESTRIAL
- Mundane blunder in batch overturned experiment
- Man of the world hearing about art going wrong
- Mistake during two experiments, the first not finished, involving earth
- ‘Earthly time slips’ describing Einstein’s first experiment
- Mundane temporary head blunders penning English test
- Mundane river ends in River Test
- Mundane blunder in two experiments wasting time
- They’re regularly applying research to test earth-dweller
- Unusually terse about right, hearing of the land
Buddy explains!
The straight part
We know that "Earthly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case earthly = terrestrial.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 TERRESTRIAL mean?
TERRESTRIAL noun- An inhabitant of the planet Earth.
- A ground-dwelling plant.
- Of, relating to, or inhabiting the land of the Earth or its inhabitants, earthly.
- Of, relating to, or composed of land.
- Living or growing in or on land (as opposed to other habitat); not aquatic, etc.
- Of a planet, being composed primarily of silicate rocks or metals; see also terrestrial planet.
- Concerned with the world or worldly matters.
- Of or pertaining to the second highest degree of glory.
- Broadcast using radio waves as opposed to satellite or cable.