Controls and rules not good I start to notice (5,2)

'controls' is the definition.
(to rein in is to control)

'rules not good i start to notice' is the wordplay.
I cannot quite see how this works, but
'rules' could be 'reins' ('rein' can be a synonym of 'rule') and 'reins' is located in the answer.
'i' is found in the answer.
A single letter 'n' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...

'and' is the link.