See my costs spiralling in complex communities (10)

I believe the answer is:

ecosystems

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'complex communities' is the definition.
The definition and answer can be both groups as well as being plural nouns.
Perhaps you can see a link between them that I can't see?

'see my costs spiralling' is the wordplay.
'see my costs' can be anagrammed to 'ECOSYSTEMS'.
Though, I'm not clear how the anagram is indicated.

'in' acts as a link.

Can you help me to learn more?

I've seen this clue in The Independent.

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