Irish horror writer - devotee found in the French University (2,4)
I believe the answer is:
le fanu
'irish horror writer' is the definition.
'le fanu' can be an answer for 'writer' (I've seen this before). I'm not sure about the 'irish horror' bit.
'devotee found in the french university' is the wordplay.
'devotee' becomes 'fan' (synonyms).
'found in' indicates putting letters inside.
'the french' becomes 'le' ('the' in French).
'university' becomes 'U' (abbreviation for university).
'le'+'u'='leu'
'fan' put within 'leu' is 'LE FANU'.
Can you help me to learn more?
(Other definitions for le fanu that I've seen before include "Sheridan --, Irish novelist" , "writer" .)