Crossword Genius

Take care of gram plant found around wetland -- very unexpected

Ross

I believe the answer is:

mind-boggling

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'very unexpected' is the definition.
I can't tell whether this defines the answer.

'take care of gram plant found around wetland' is the wordplay.
'take care of' becomes 'mind' ('mind' can be a synonym of 'take care of').
'gram' becomes 'g' ('g' can be a synonym of 'gram').
'plant' becomes 'ling' (ling is a kind of plant**).
'found around' indicates putting letters inside.
'wetland' becomes 'bog'.
'mind'+'g'+'ling'='mindgling'
'mindgling' enclosing 'bog' is 'MIND-BOGGLING'.

Can you help me to learn more?

(Other definitions for mind-boggling that I've seen before include "Almost impossible to comprehend" , "Beyond comprehension" , "Astonishing" , "Overwhelming" , "Incredible" .)

I've seen this clue in The Telegraph.
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