New name given to shooting star moving over weather instrument (10)
I believe the answer is:
anemometer
'weather instrument' is the definition.
(I've seen this in another clue)
'new name given to shooting star' is the wordplay.
'new' indicates anagramming the letters.
'given to' means one lot of letters go next to another.
'shooting star' becomes 'ometer' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'name' anagrammed gives 'anem'.
'anem'+'ometer'='ANEMOMETER'
'moving over' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for anemometer that I've seen before include "Meaner to me (anag)" , "Wind speed gauge" , "Wind speed measurer" , "Air Force display unit?" , "Windspeed measurer" .)