The most common and most likely answer to this crossword clue is the 6 letter word ANCHOR
I've seen this crossword clue in The Times
A
N
C
H
O
R
More clues leading to the result ANCHOR
- Moor in ageless US city
- Fix a sort of gate outside church
- TV presenter, first to advise new contestants hesitant over responses
- An unpleasant job not quite enough for newsreader
- TV presenter  to make secure
- A new job not quite providing security
- Fix monarchy by getting rid of outsiders and implementing reform
- Host slicing Iberian chorizo
- News presenter, a primarily nasty piece of work, gets end away
- Studio presenter‘s tie
Buddy explains!
The straight part
We know that "newsreader" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case newsreader = anchor.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 ANCHOR mean?
ANCHOR noun- A tool used to moor a vessel to the bottom of a sea or river to resist movement.
- An iron device so shaped as to grip the bottom and hold a vessel at her berth by the chain or rope attached. (FM 55-501).
- The combined anchoring gear (anchor, rode, bill/peak and fittings such as bitts, cat, and windlass.)
- Representation of the nautical tool, used as a heraldic charge.
- Any instrument serving a purpose like that of a ship's anchor, such as an arrangement of timber to hold a dam fast; a device to hold the end of a bridge cable etc.; or a device used in metalworking to hold the core of a mould in place.
- A marked point in a document that can be the target of a hyperlink.
- An anchorman or anchorwoman.
- The final runner in a relay race.
- A point that is touched by the draw hand or string when the bow is fully drawn and ready to shoot.
- A superstore or other facility that serves as a focus to bring customers into an area.
- That which gives stability or security.
- A metal tie holding adjoining parts of a building together.
- Carved work, somewhat resembling an anchor or arrowhead; part of the ornaments of certain mouldings. It is seen in the echinus, or egg-and-anchor (called also egg-and-dart, egg-and-tongue) ornament.
- One of the anchor-shaped spicules of certain sponges.
- One of the calcareous spinules of certain holothurians, as in species of Synapta.
- The thirty-fifth Lenormand card.
- An anchorite or anchoress.
- To connect an object, especially a ship or a boat, to a fixed point.
- To cast anchor; to come to anchor.
- To stop; to fix or rest.
- To provide emotional stability for a person in distress.
- To perform as an anchorman or anchorwoman.
- To be stuck; to be unable to move away from a position.
- A measure of wine or spirit equal to 10 gallons; a barrel of this capacity.