Catch with line at sea in accordance with strict rules (9)
I believe the answer is:
technical
'accordance with strict rules' is the definition.
I can't tell whether this definition defines the answer.
'catch with line at sea' is the wordplay.
'with' says to put letters next to each other.
'at sea' is an anagram indicator.
'catch'+'line'='catchline'
'catchline' with letters rearranged gives 'TECHNICAL'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for technical that I've seen before include "sort of college" , "Concerned with applied sciences" , "Relating to mechanical art or applied science" , "- Drawing; - foul" , "requiring special skill" .)