One promoting mobile app for dating's wanting female (12)

I believe the answer is:

propagandist

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'one promoting' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'mobile app for dating's wanting female' is the wordplay.
'mobile' is an anagram indicator (mobile can mean moving).
'wanting' is a deletion indicator (to want something can mean to lack it or need it).
'female' becomes 'f' (abbreviation).
'app'+'for'+'datings'='appfordatings'
'appfordatings' with 'f' removed is 'appordatings'.
'appordatings' is an anagram of 'PROPAGANDIST'.

Can you help me to learn more?

(Another definition for propagandist that I've seen is " evangelist".)

I've seen this clue in The Telegraph.

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