Root of puzzles we designed (5)

I believe the answer is:

swede

'root' is the definition.
(I know that swede is a root vegetable)

'of puzzles we designed' is the wordplay.
'of' indicates a hidden word.
'SWEDE' is hidden in the letters of 'puzzles we designed'.

(Other definitions for swede that I've seen before include "plant" , "Foreigner" , "North European" , "Man from Malmo" , "Scandinavian - vegetable" .)

I've seen this clue in The Sun.

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