clicking noise from front wheel when braking

Hi all my first posting so be gentle please. I get what I can only describe as a clicking crunching noise from what appears to be the front driver side wheel when I apply the foot brake at slow speeds and come to a halt. Have checked the calliper and disk but cannot see anything obvious. Jacked up and tried rocking the wheel vertically and again didn't notice any play or hear anything. Any ideas please?

Sounds like either siezed caliper guide pins or anti roll bar links.

Will check and report back thanks