'Old-fashioned', old university with 'tense' old fellow? 'Tense? That hurts!' (3,2,5)
I believe the answer is:
out of touch
'old-fashioned' is the definition.
(I've seen this before)
'old university with tense old fellow? tense? that hurts' is the wordplay.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'university' becomes 'u' (abbreviation for university).
'with' is a charade indicator (letters next to each other).
'tense old fellow? tense?' becomes 'toft' (this could be a standard abbreviation of which I'm unaware).
'that hurts' becomes 'ouch'.
'o'+'u'+'toft'+'ouch'='OUT OF TOUCH'
Can you help me to learn more?
(Other definitions for out of touch that I've seen before include "Not in communication with" , "Not au fait with recent developments" , "old-fashioned" , "Not up-to-date: not in form" , "in play, presumably" .)