Clunk from brakesF

[NiceCupOfTea]

For quite a while now I've been aware on an occasional clunk from the front off-side wheel, when I brake to a stop. It doesn't happen every time, seems to be when I haven't used them for a while when driving, or have been reversing. I wondered if it was some sort of "floating" setup that is supposed to move but the near side one doesn't seem to do it. Didn't mention it at MOT but it didn't get picked up on.

The car pulls up well with no problems.