The most common and most likely answer to this crossword clue is the 8 letter word ANTENNAE
I've seen this crossword clue in The Times
A
N
T
E
N
N
A
E
More clues leading to the result ANTENNAE
- They sense poet’s beheaded after capturing old Queen in revolutionary way
- Feelers put out by worker backing English girl
- They receive an unfinished banknote outside front of ATM
- Queen inside volcano should be brought back, they feel
- They feel for some small creatures
- Newsreader Ford sits around time of broadcast close to the transmitting equipment
- Before embracing, Anne put out feelers
- Worker and English girl taken aback — they can sense things
- Feelers that girl has to catch up, with a low grade
- Insurgent woman should be tethered by stake, they feel
Buddy explains!

The straight part
We know that "They sense" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case they sense = antennae.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 ANTENNAE mean?
ANTENNAE noun- A feeler organ on the head of an insect, crab, or other animal.
- An apparatus to receive or transmit electromagnetic waves and convert respectively to or from an electrical signal.
- The faculty of intuitive astuteness.
- A fragment of an oligosaccharide
- The spar to which a lateen sail is attached, which is then hoisted up the mast.