Describe partner that was unattractive (7)
I believe the answer is:
explain
'describe partner that' is the definition.
'explain' can be an answer for 'describe' (I've seen this before). I am not certain of the rest of the definition.
'was unattractive' is the wordplay.
'was' becomes 'ex' (I've seen this in other clues).
'unattractive' becomes 'plain' (similar in meaning).
'ex'+'plain'='EXPLAIN'
Can you help me to learn more?
(Other definitions for explain that I've seen before include "Expound" , "Spell out" , "Elucidate, make clear" , "Give reasons for" , "Make intelligible and account for" .)