One's beginning online reports about new shapes (7)
I believe the answer is:
oblongs
'shapes' is the definition.
(oblong is a kind of shape)
'one's beginning online reports about new' is the wordplay.
I cannot really understand how this works, but
'online' could be 'on' (similar in meaning) and 'on' is found in the answer.
'one' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for oblongs that I've seen is " Rectangles".)