Study of control systems and science overturned by breaking recent limits to biology (11)
I believe the answer is:
cybernetics
'study of control systems' is the definition.
'cybernetics' can be an answer for 'study' (cybernetics is a kind of study). I'm not sure about the 'of control systems' bit.
'science overturned by breaking recent limits to biology' is the wordplay.
'science' becomes 'sci' (eg in 'poli sci' for political science).
'overturned' shows that the letters should be reversed in order.
'by' says to put letters next to each other.
'breaking' is an anagram indicator.
'limits to' means to remove the middle letters (only the edge letters are used).
'biology' with its middle taken out is 'by'.
'sci' written backwards gives 'ics'.
'recent'+'by'='recentby'
'recentby' is an anagram of 'cybernet'.
'ics' after 'cybernet' is 'CYBERNETICS'.
'and' is the link.
Can you help me to learn more?
(Other definitions for cybernetics that I've seen before include "Information science -- recency bits (anag)" , "Science of communication and automatic control systems" , "Science of communications and automated control systems in both machines and living things" , "Study embracing both computers and the nervous system" .)