Dreadful senior framing tough rules (12)

I believe the answer is:

restrictions

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

'rules' is the definition.
(restriction is a kind of rule)

'dreadful senior framing tough' is the wordplay.
I cannot really see how this works, but
'tough' could be 'strict' (I've seen this before) and 'strict' is found within the answer.
an anagram of 'senior' is 'reions' which is within the left over letters.
No letters remain.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in The Hindu.

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