Old rocker in sexy underwear — I'm thrilled! (5,3)
I believe the answer is:
teddy boy
'old rocker' is the definition.
'teddy boy' can be an answer for 'rocker' (I've seen this before). I am not certain of the 'old' bit.
'sexy underwear i'm thrilled' is the wordplay.
I cannot quite understand how this works, but
'underwear' could be 'teddy' (all-in-one undergarment) and 'teddy' is located in the answer.
The remaining letters 'boy' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for teddy boy that I've seen before include "Yob of the 50s" , "1950s' unruly youth" , "Mid-1950s British youth with long sideboards" , "Rocker" , "Rebellious British youth of the 1950s" .)