Crossword Genius

How to make a cult TV series? (6,3)

Ross

I believe the answer is:

doctor who

I'm a little stuck... Click here to teach me more about this clue!

'tv series?' is the definition.
(I've seen this before)

'how to make a cult' is the wordplay.
I cannot really see how this works, but
an anagram of 'how' is 'who' which is located in the answer.
'to' is within the answer.
'make' could be 'do' (synonyms) and 'do' is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for doctor who that I've seen before include "TV show" , "Programme" , "BBC TV series" , "Gallifreyan time lord" , "Cybermen's foe" .)

I've seen this clue in The Hindu.
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