The most common and most likely answer to this crossword clue is the 4 letter word BULB
I've seen this crossword clue in The Daily Telegraph
B
U
L
B
More clues leading to the result BULB
- Source of light to cry over
- Cry over an onion?
- Cry goes up: “Let there be light!”
- Onion or what it makes you do, if brought up
- Curb lubricant, holding back incipient growth
- Source of light that’s growing
- The light that grows
- Indian bird, mostly gets garlic, perhaps
- Onion, or what people do when cutting one back
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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 BULB mean?
BULB noun- Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end.
- A light bulb.
- The bulb-shaped root portion of a plant such as a tulip, from which the rest of the plant may be regrown.
- A bulbous protuberance at the forefoot of certain vessels to reduce turbulence.
- The medulla oblongata.
- To take the shape of a bulb; to swell.