A topless dominatrix pops up to provide rough ideas (14)

I believe the answer is:

approximations

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'rough ideas' is the definition.
'approximations' can be an answer for 'ideas' ('approximation' can be a synonym of 'idea'). I'm not sure about the 'rough' bit.

'a topless dominatrix pops up' is the wordplay.
'topless' means to remove the first letter.
'up' indicates anagramming the letters (letters get chucked up).
'dominatrix'+'pops'='dominatrixpops'
'dominatrixpops' with its initial letter taken off is 'ominatrixpops'.
'ominatrixpops' with letters rearranged gives 'pproximations'.
'a'+'pproximations'='APPROXIMATIONS'

'to provide' acts as a link.

Can you help me to learn more?

I've seen this clue in The Independent.

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