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Others trying to crack physics concept (6,6)

Ross

I believe the answer is:

string theory

'physics concept' is the definition.

'others trying to crack' is the wordplay.
'to crack' is an anagram indicator (I've seen 'cracked' mean this).
'others'+'trying'='otherstrying'
'otherstrying' anagrammed gives 'STRING THEORY'.

(Other definitions for string theory that I've seen before include "One idea in particle physics" , "Idea relating to subatomic particles" , "Cosmological hypothesis concerning all fundamental particles - retrying tosh (anag)" .)

I've seen this clue in The Times.
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