Score that's close, We and They showing nothing in it (6)
I believe the answer is:
twenty
'score' is the definition.
(synonyms)
'close we and they showing nothing in it' is the wordplay.
I cannot quite understand how this works, but
'we' is found in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is located in the answer.
This explanation may well be incorrect...
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for twenty that I've seen before include "Cardinal" , "previous clue?" , "No. between 5 and 1 on dartboard" , "Figure" , "Number" .)