Secretly loathe messiah's ideas (6)

I believe the answer is:

themes

'ideas' is the definition.
(theme is a kind of idea)

'secretly loathe messiah's' is the wordplay.
'secretly' indicates a hidden word.
'THEMES' is hidden in the letters of 'loathe messiahs'.

(Other definitions for themes that I've seen before include "Topics, ideas, motifs" , "'Subjects, topics (6)'" , "Subjects or repeated musical pieces" , "Subjects or unifying ideas" , "Subjects or repeated melodies" .)

I've seen this clue in The Irish Times.

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