Old scholar's letters on display at Times (7)
I believe the answer is:
erasmus
'old scholar's' is the definition.
'erasmus' can be an answer for 'scholar's' (Erasmus is an example). I'm not certain of the 'old' bit.
'letters on display at times' is the wordplay.
'letters' becomes 'mus' (mu is a kind of letter).
'on display at' says to put letters next to each other.
'times' becomes 'eras' (era is a kind of time).
'mus' put after 'eras' is 'ERASMUS'.
Can you help me to learn more?
(Other definitions for erasmus that I've seen before include "Dutch philosopher" , "Was this Dutch Renaissance man a strange masseur?" , "Learned person" , "He praised folly" , "Desiderius -, fifteenth and sixteenth century Dutch humanist" .)