Theory about planets' movement in space and time, mostly (9,6)
I believe the answer is:
ptolemaic system
'theory' is the definition.
(Ptolemaic system is an example)
'movement in space and time mostly' is the wordplay.
'movement in' is an anagram indicator (I've seen this in other clues).
'and' means one lot of letters go next to another.
'time'+'mostly'='timemostly'
'space' after 'timemostly' is 'timemostlyspace'.
'timemostlyspace' anagrammed gives 'PTOLEMAIC SYSTEM'.
'about planets'' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
I've seen this clue in The Independent.
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