Those struggling to grasp university having work stack up here? (8)
I believe the answer is:
housetop
'stack up here?' is the definition.
(as in a chimney stack)
'those struggling to grasp university having work' is the wordplay.
'struggling' is an anagram indicator (the letters struggle or wriggle into a new form).
'to grasp' is an insertion indicator.
'university' becomes 'U' (abbreviation as in UMass).
'having' is a charade indicator (letters next to each other).
'work' becomes 'op' (abbreviation for opus).
'those' is an anagram of 'hoset'.
'hoset' placed around 'u' is 'houset'.
'houset'+'op'='HOUSETOP'
(Other definitions for housetop that I've seen before include "[PROCLAIM] from up here?" , "Roof (from which to shout?)" .)