See my trip around the Shaky Isles needed catalytic converters (7)
I believe the answer is:
enzymes
'isles needed catalytic converters' is the definition.
I can't judge whether this defines the answer.
'see my trip around the shaky' is the wordplay.
'trip' indicates anagramming the letters.
'around' is an insertion indicator.
'the shaky' becomes 'nz' (I can't justify this - if you can you should give a lot more credence to this answer).
'see'+'my'='seemy'
'seemy' with letters rearranged gives 'eymes'.
'eymes' enclosing 'nz' is 'ENZYMES'.
Can you help me to learn more?
(Other definitions for enzymes that I've seen before include "Biological catalysts" , "Complex proteins produced by living cells" , "Bodily catalysts" .)