Issue besetting learner over slice (8)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

ESCAPE (issue, as a verb, as in water escaping from a broken pipe), containing (besetting) L (abbreviation for learner, as in L-plate) + O (abbreviation for over, in cricket scoring). A slice of meat, usually coated in breadcrumbs and fried.