Condition endlessly applied to limits of the law (7)
I believe the answer is:
statute
'law' is the definition.
(I've seen this before)
'condition endlessly applied to limits of the' is the wordplay.
'condition' becomes 'status' (synonyms).
'endlessly' means to remove the last letter.
'applied to' means one lot of letters go next to another.
'limits of' suggests removing the centre.
'the' with its centre taken out is 'te'.
'status' with its final letter removed is 'statu'.
'statu'+'te'='STATUTE'
(Other definitions for statute that I've seen before include "Act of law" , "Law, rule" , "Law recorded in book" , "Legislative act" , "Set taut (anag.)" .)