More than one scientist gets to go round island following old account (10)
I believe the answer is:
geologists
'more than one scientist' is the definition.
(geologist is a kind of scientist)
'gets to go round island following old account' is the wordplay.
'to go round' means one lot of letters goes inside another.
'island' becomes 'is'.
'following' says to put letters next to each other.
'old account' becomes 'olog' (I can't justify this - if you can you should believe this answer much more).
'is' put after 'olog' is 'ologis'.
'gets' enclosing 'ologis' is 'GEOLOGISTS'.
Can you help me to learn more?
(Another definition for geologists that I've seen is " Rock fans".)