Surprisingly, claimant is bringing good luck (10)

I believe the answer is:

talismanic

'bringing good luck' is the definition.
(a talisman brings good luck)

'surprisingly claimant is' is the wordplay.
'surprisingly' is an anagram indicator (a surprising ordering of the letters).
'claimant'+'is'='claimantis'
'claimantis' anagrammed gives 'TALISMANIC'.

(Another definition for talismanic that I've seen is " like a charm".)

I've seen this clue in The Independent.

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