A queen forbidding great passion (6)

I believe the answer is:

ardour

'great passion' is the definition.
(I've seen this before)

'a queen forbidding' is the wordplay.
'queen' becomes 'r' (abbreviation for regina, e.g. in ER ).
'forbidding' becomes 'dour' (I've seen this before).
'a'+'r'+'dour'='ARDOUR'

(Other definitions for ardour that I've seen before include "Fervency" , "Enthusiasm or warmth of passion" , "Intense eagerness" , "Passionate warmth" , "Fervour, zeal" .)

I've seen this clue in The Times.

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