She put in the clue for "controlled" (7)
I believe the answer is:
leashed
'controlled' is the definition.
The answer and definition can be both to do with contact as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
'she put in the clue' is the wordplay.
'put in' indicates putting letters inside.
'the clue' becomes 'lead' (e.g. in a police investigation).
'she' inserted within 'lead' is 'LEASHED'.
'for' acts as a link.
Can you help me to learn more?
(Another definition for leashed that I've seen is " restricted".)